DESERT PLANTS

Aloe ramosissima

2011-07-04T11:56:00.000-07:00

Aloe ramosissima is a garden favourite in many rockeries due to its ability to withstand long spells of drought and its small tree-like appearance. The plants are very closely related to Aloe dichotoma but form a large bush instead of a tree.

The natural distribution of Aloe ramosissima is the very dry and hot areas of the northern Richtersveld and southern Namibia while the distribution of Aloe dichotoma is wider. In nature plants are found that appear to be intermediate between the two species.

The flowers are identical to those of Aloe dichotoma and appear from June to August.

The cultivation of Aloe ramosissima is quite easy as long as the plants are kept in well drained soil and not over watered. Like many other Aloes the plants are prone to get ugly cancerous growths.

Propagation is from seed although cuttings can also root at times.

Pachypodium succulentum

2011-04-12T13:20:00.000-07:00

Pachypodium succulentum is common and widely distributed in arid stony areas in the Little Karoo and Eastern Cape Province.

The plants are very similar to Pachypodium bispinosum with a large subterranean tuber and can only be positively identified when in flower. The flowers of Pachypodium succulentum are white with a narrow tube and a reddish line in the center of each petal.

Propagation is from seed or cuttings.

Pachyforms: A Guide to Growing Pachycaul and Caudiciform Plants

Pachypodium (Apocynaceae)

Halfmens, Pachypodium Namaquanum, Goegap Reserve, Namaqualand, South Africa, Africa Photographic Poster Print by Ann & Steve Toon, 30x40

Haworthia papillaris

2011-02-25T11:02:00.000-08:00

The name Haworthia papillaris is applied to this very interesting form of Haworthia truncata from the vicinity of Dysselsdorp in the Southern Cape.

Although the plants are smaller then most other Haworthia truncata, they are covered with little protrusions or papillae over their bodies.

The plants are usually well hidden under bushes or debris (old leaves, twigs etc). This makes them very difficult to find. Haworthia papillaris is a rare, choice plant in collections. It does not seem to flower as prolifically as some other truncata, and seed production in nature tends to be rather skimpy.

Propagation is (similar to other Haworthia truncata) by seed, leaf cuttings or root cuttings.

Haworthia papillaris in habitat.

Conophytum truncatum ssp. truncatum var. truncatum

2011-02-15T11:39:00.000-08:00

Conophytum truncatum ssp. truncatum var. truncatum is endemic to the Little Karoo.

This tiny succulent grows on hillsides in arid territory. Similar to others in the genus (e.g. Conophytum wettsteinii ) the plants grow in winter and are dormant and covered with a white sheath during the hot summer months.

The plant bodies are marked with dots or sometimes purple red lines.

The flowers appear in autumn and are yellow, white or pinkish.

Propagation is by seed or dividing the plant bodies.

Conophytum truncatum var. truncatum in habitat south of Oudtshoorn.

Flower.

Seed capsule.

Erica glandulosa subsp glandulosa

2011-02-08T11:29:00.000-08:00

Erica glandulosa subsp glandulosa grows in mountainous areas including areas adjacent to semi-desert landscape. The distribution is from the mountain ranges of the Little Karoo eastwards to Port Elizabeth.

The beautiful pink to orange blooms are produced throughout the year.

Erica glandulosa subsp glandulosa in habitat near the Outeniqua Mountains.

Haworthia zenigata

2011-02-06T13:16:00.000-08:00

Haworthia zenigata is an extremely rare small succulent plant found in fynbos habitat at only a few localities north of the Outeniqua mountains.

The plants are related to Haworthia minima and Haworthia kingiana of the coastal areas.

Seed production in nature is almost non-existent and the plants are not available in cultivation yet.

Haworthia zenigata in habitat.

Duvalia caespitosa

2011-02-06T05:28:00.000-08:00

Duvalia caespitosa is commonly found in arid areas from Namibia to the Eastern Cape Province.

Similar to Duvalia parviflora the sprawling stems are usually in the shade of other shrub.

The brown to almost black flowers occur from autumn to spring.

The plants are easy to cultivate, but need good drainage.

Propagation is from cuttings which are easily removed or seed.

Haworthia erii

2011-02-02T12:35:00.000-08:00

Haworthia erii is a mountainous Haworthia found in at least one locality between De Rust and Uniondale. Related plants occur in other areas east of De Rust.

Haworthia erii is especially attractive due to its silvery shiny translucent leaf tips..

The flowering time is in December and correlates with that of Haworthia arachnoidea and Haworthia aranea found further to the west.

The plants were described by Dr. M Hayashi.

Cultivation is not difficult, but care should be taken to prevent the base of the plant to become waterlogged. Propagation is from seed. Growth is slow.

Haworthia erii in cultivation.

Cyphostemma uter

2010-12-31T10:18:00.000-08:00

The distribution of Cyphostemma uter is limited to the hot and dry Kaokoveld in northern Namibia. The area is very remote and the plant was only described in 1960 by Bernard M.Descoings.

This caudex forming plant that belongs to the grape family can grow to a height of about 2 meters. The plants grow and flower in summer and need a well drained sandy soil and do best when fully exposed to the sun. In cultivation minimum temperatures of -3 deg Celsius are withstood as long as the plants are kept relatively dry and well ventilated.

The propagation is from seed or cuttings. Seedlings are very prone to rot.

Cyphostemma uter, a seed grown plant in cultivation.

Flowers and seed.

Leucospermum pluridens

2010-12-12T11:59:00.000-08:00

Leucospermum pluridens, a member of the Protea family, is endemic to the Little Karoo where it occurs in Arid Protea Fynbos vegetation.

This interesting plant can grow up to 3 meters tall and flowers in habitat from spring to summer.

Propagation is from seed or cuttings.

Leucospermum pluridens flowering in Keurkloof Private Reserve.

Pelargonium trifidum

2010-12-12T11:18:00.000-08:00

Pelargonium trifidum (also known as Pelargonium fragile) occurs widespread from Worcester in the Western Cape to the Eastern Cape.

The flowers are white and the upper two petals are marked with red-purple lines. The flowering time is in spring and summer.

Propagation is from seed.

Pelargonium trifidum flowers.

The flowers are quite variable in shape.

Pelargonium trifidum leaves.

Stapelia hirsuta var. hirsuta

2010-12-12T07:52:00.000-08:00

Stapelia hirsuta var. hirsuta has a wide distribution from Namaqualand southwards to the Western Cape and from there eastwards to the Little Karoo as well as the southern perimeter of the Great Karoo.

The stems are quadrangular and erect and similar to many others in the genus. The showy flowers are highly variable throughout the distribution range.

The cultivation of Stapelia hirsuta var. hirsuta is easy and similar to Stapelia in general. Good drainage is essential to prevent rot.

Propagation is from seed or cuttings.

Stapelia hirsuta var. hirsuta flower.

A plant from the Caledon district.

Hessea stellaris

2010-12-06T04:41:00.000-08:00

Hessea stellaris occurs in arid landscape from about Loeriesfontein in the Northern Cape Province to Oudtshoorn in the Little Karoo.

These small bulbs are dormant during the summer months and start to produce their two thin dark green leaves in autumn. The bulbs flower during the middle of autumn in different shades of pink and the fleshy round seeds mature rapidly after flowering.

Propagation is from seed which germinates well, but growth is very slow.

Hessea stellaris flowering in the Tanqua Karoo.

Darker pink flowers from the same population as above.

Bulbs flowering in May south of Oudtshoorn.

Babiana sambucina

2010-11-30T04:15:00.000-08:00

Babiana sambucina is widely distributed and fairly common between Ceres and Port Elizabeth.

The winter growing bulbs can be confused with the rarer Babiana karooica from the Little Karoo, but the flowers are larger.

The bluish-purple flowers have variable red and white markings.

The leaves usually wilt when the bulbs are transplanted, but recuperate the next season.

Propagation is from seed.

Babiana sambucina in flower. Another image.

Massonia depressa

2010-11-25T02:32:00.000-08:00

Massonia depressa is widely distributed from Namaqualand to the Eastern Cape province. The deciduous shallow growing bulbs prefer stony areas where sometimes fairly large colonies are formed. The greenish-yellow to whitish flowers occur in autumn while the plants are in leaf.

The leaves are plain green or green with purplish-brown markings.

Cultivation is easy. The plants rest during the summer months when watering should be done sparingly. Propagation is by seed. The black seeds ripen within weeks after the bulbs stop flowering.

Massonia depressa near Oudtshoorn.

Crassula arborescens

2010-11-20T06:36:00.000-08:00

Crassula arborescens occurs widespread in arid landscape from Namaqualand to the Eastern Cape Province. The plants have a somewhat similar appearance than the well known Crassula ovata, but the leaves are blue-gray and larger than those of the latter.

This shrub has a thick succulent stem with many branches and can grow up to about 1.5 meters tall.

The dense clusters of white flowers occur in spring and summer.

The cultivation of Crassula arborescens is very easy. Good drainage and full sun is preferred for optimal results.

Propagation is usually by cuttings of the branches or leaves, which easily root.

Crassula arborescens on a rocky outcropping in the Little Karoo.

Flowers.

Euphorbia pillansii

2010-11-12T06:47:00.001-08:00

Euphorbia pillansii has a wide distribution in the arid areas of the Western Cape Province from the district of Ladismith westwards towards the Ceres district.

This unisexual Euphorbia with gray-green stems grows to a height of about 30 cm. The peduncles are forked and persistent performing the function of spines after the seed has been dispersed.

The plants flower in spring making small yellowish cyathia.

The cultivation of Euphorbia pillansii is relatively easy. A well drained loamy soil with occasional watering is best. Although the plants grow in the winter rainfall area, rain in habitat is scarce and occasional summer thunderstorms also occur.

Euphorbia pillansii, a fruiting plant near Plathuis.

Carpobrotus mellei

2010-11-12T06:19:00.000-08:00

Carpobrotus mellei is an endemic of the Western Cape Province where it occurs in fynbos, renosterveld and coastal areas.

This crawling succulent mesemb (Aizoaceae) can form large mats and produce beautiful large pink flowers during spring and summer.

Similar to Carpobrotus edulis, Carpobrotus mellei makes an excellent ground cover and needs no special care. The plants in habitat usually grow in well drained sandy soils.

Carpobrotus mellei near the N2 highway east of Albertinia.

Ornithogalum rupestre

2010-11-12T02:27:00.000-08:00

Ornithogalum rupestre is an attractive small bulb that occurs from the

Bokkeveld Mountains to the Klein Karoo, often preferring bare patches

where little else grows.

The bulbs have curved and narrow gray-green leaves that whither after

the plants have flowered in spring. The inflorescence is up to about 15

cm high. The flowers are white, but in the Little Karoo they are

yellow with a green centre.

The cultivation of Ornithogalum rupestre is easy. The bulbs grow just

below the soil surface and should be watered occasionally mainly in

autumn and winter as this corresponds to their natural growing period.

A well drained soil is preferred.

Ornithogalum rupestre, the yellow flowering form, growing in a bare patch in the Little Karoo.

Leaves.

The plants can produce one or two flowers at a time.

Reference:

Vlok,J and A. Plants of the Klein Karoo. Hatfield: Umdaus Press, 2010.

Eriospermum crispum

2010-11-11T00:52:00.000-08:00

Eriospermum crispum is endemic to the arid Little Karoo where it occurs sporadically growing in between ferri-crete pebbles in apronveld. This rare species only occurs in the areas between Oudtshoorn and Calitzdorp.

A single wavy gray-green erect leaf is produced in winter.

The flowers are creamy white with a single green line and the raceme is less then 20 cm tall.

The cultivation of Eriospermum crispum is similar to others in the genus. The tuber should be planted about one or 2 cm below the soil surface. The resting period is in summer when watering should be done sparingly. A well drained soil is recommended.

Propagation is by sowing the white cotton-like seeds or making cuttings from the tuber.

Eriospermum crispum near Oudtshoorn.

Reference:

Vlok,J and A. Plants of the Klein Karoo. Hatfield: Umdaus Press, 2010.

Haworthia reddii

2010-11-09T14:04:00.000-08:00

Haworthia reddii is a soft leaved succulent plant endemic to the areas of Fort Beaufort and Kingwilliamstown in the Easten Cape Province.

This species is closely related to Haworthia cymbiformis. The plants are easy to cultivate and sucker from the base producing extensive clumps.

The plants look best if they receive fairly good light and are not over watered.

Synonym: Haworthia cymbiformis var. reddii (sensu M.B. Bayer).

Haworthia reddii originating from Waterdown Dam in cultivation.

Euphorbia obesa

2010-11-07T11:21:00.000-08:00

Euphorbia obesa is distributed and uncommon in the arid areas of the Graaff-Reinet district in the Eastern Cape Province. The plants were discovered in 1897 by MacOwen near Kendrew south of Graaff-Reinet. Euphorbia obesa soon became one the most sought after Euphorbia species of all time and was unscrupulously collected in the wild for many years. Fortunately the plants are now protected and propagated from seed all over the world.

Its attractive almost rotund shape with eight segments resembles much the huts that some of the native people make and hence it was initially referred to as "Kafferhut" (Afr.). Nowadays this name has been abandoned and the plants are more happily called "Vetmensie" (fat-person).

Euphorbia obesa elongates out of its ball shape with age becoming somewhat columnar.

This is one example of convergence in evolution, where Euphorbia obesa has attained a similar shape and appearance than the totally unrelated cactus Astrophytum asterias.

The plants are unisexual and the female plants produce fairly large amounts of seed on the apex of the plant about twice per season. The peduncles are not persistent and fall off after the seed ripens.

In nature hybrids are sometimes formed with Euphorbia ferox.

Euphorbia obesa does well in cultivation. Avoid winter temperatures much below -3 deg. Celsius. The plants like full sun, heat and detest waterlogged soils. A well drained slightly sandy soil should be ideal.

Euphorbia obesa, a young male plant.

An older female plant.

Seedpods.

Eriospermum paradoxum

2010-10-10T03:14:00.000-07:00

Eriospermum paradoxum is a member of an odd and unique genus that is mainly distributed in the desert and semi-desert areas of Sub-Saharan Africa.

Eriospermum paradoxum occurs in arid areas of South Africa.

The plants are winter growing with a freely rooting potato-like tuber. The enations (bifurcating protrusions) of the single leaf demonstrate the diversity in the genus and gives the appearance of a small Christmas tree.

In spring the leaf dies off, leaving the tuber to rest underground for the next season.

During autumn a raceme of white fragrant flowers is produced.

Cultivation of the plants is relatively easy. The tuber should be planted about a cm or 2 below the surface of a well drained soil. Water only very occasionally during the summer months and in winter only when the soil is dry. Propagation is by seed or by dividing the tuber.

Eriospermum paradoxum in habitat in the Little Karoo.

Cleistocactus jujuyensis

2010-10-10T02:50:00.000-07:00

Cleistocactus jujuyensis is a slender, freely branching cactus native to Argentina and Bolivia.

The greyish-green stems grow up to 1 m long or sometimes longer. The aeroles produce many thin radial spines and four yellow-brown central spines. The thin flowers (up to 4 cm long) are red in colour and appear in the middle of spring in our rockery in South Africa.

Propagation is from seed or cuttings and a well drained soil is essential. Watering is mainly during summer.

Adult plants in our nursery easily withstand mild frost (-3 deg Celsius) in winter.

Cleistocactus jujuyensis in cultivation.

Flowers.

Haworthia koelmaniorum

2010-09-26T12:19:00.000-07:00

Haworthia koelmaniorum is known from the area around Groblersdal in Mpumalanga, and has also been collected elswhere.

The plants are related to Haworthia limifolia but have a darker and brownish colour and also lack the stoloniferous nature sometimes found in the latter species.

Although Haworthia koelmaniorum naturally occurs in the summer rainfall area, the plants seem to have no problem when cultivated under similar conditions as their winter-growing relatives.

Propagation is from seed or leaf cuttings. Growth is slow.

The first two pictures are from Haworthia koelmaniorum in cultivation.

The following two pictures are hybrids with Haworthia koelmaniorum as one parent. The plants were created by Gerhard Marx.

Haworthia minima x koelmaniorum

Haworthia koelmaniorum x mortonii

Haworthia lockwoodii

2010-09-19T11:27:00.000-07:00

Haworthia lockwoodii occurs in the dry areas south of Laingsburg in the Great Karoo. These soft-leaved Haworthias show some affinity with Haworthia mucronata from the Little Karoo and indeed some intermediate populations exist in between the Great- and Little Karoo illustrating the connection. Haworthia lockwoodii is however usually a larger plant and the dying off of the leaf tips during the dry summer is much more pronounced.

The plants also apparently link with Haworthia decipiens.

Propagation is from seed and the plants should be watered with care as Haworthia lockwoodii is fairly prone to rot. Although their natural habitat is in the summer rainfall area, the plants prefer to grow in winter.

Typical habitat of Haworthia lockwoodii south of Laingsburg.

Haworthia lockwoodii in habitat, buried in a protective layer of its own dead leaves.

Haworthia diversifolia

2010-09-18T15:08:00.000-07:00

Haworthia diversifolia occurs in the Great Karoo from the Prince Albert district eastwards to the Willowmore district and possibly further, as well as areas around Beaufort West.

The plants seem to be related to Haworthia nigra, but the leaves are shorter and more compactly stacked on top of each other, similarly to Haworthia viscosa.

The cultivation of Haworthia diversifolia is not easy and the plants are often unhappy in cultivation. Propagation is from seed which is quite difficult to obtain.

Synonym: Haworthia nigra var. diversifolia.

Haworthia diversifolia north of Prince Albert. An attractive and well marked rugose specimen.

Stapelia rufa

2010-09-17T12:41:00.000-07:00

Stapelia rufa is distributed in the arid Karoo in South Africa.

The stem are softly pubescent and the reddish rugose flowers are quite small for the genus, measuring some 3 to 5 cm across.

Propagation is from seed or cuttings, and care is mostly similar to other members of the genus, requiring a well drained soil and only occasional watering.

Stapelia rufa growing on a rockery at Leopoort.

Flower.

Euphorbia inermis

2010-09-08T13:49:00.001-07:00

Euphorbia inermis is closely related to Euphorbia esculenta but the branches (fingers) are generally longer and thinner than those of the latter. In both species the tuberous root is distinct from the main stem and the bracteoles are woolly white.

The plants are distributed from around Uitenhage to the Fish River Valley. The peduncles of Euphorbia inermis are shorter than those of E esculenta and the styles are almost fully joined into a slender column.

Propagation is from seed.

Euphorbia inermis in habitat.

Euphorbia inermis cyathia.

Euphorbia esculenta

2010-09-08T13:49:00.000-07:00

Euphorbia esculenta is a large growing medusa-head Euphorbia that occurs widespread in the Eastern Cape Province from the Uitenhage district north-eastwards into the semi-desert areas of Jansenville, Steytlerville, Willowmore, Aberdeen and Graaff-Reinet.

The plants are quite common throughout their distribution area and can form extensive colonies.
The deep tuberous root is distinct from the main stem and does not form a single unit like in some other similar looking species. The bracteoles are woolly and white making the plants strikingly attractive while in flower.The involucre glands of the cyathia are brown or green.

The plants like full sun and prefer a minimum temperature of about - 3 degrees Celsius. In habitat Euphorbia esculenta receives rainfall mainly in the summer months in the form of afternoon thundershowers. The red clay soil in which they often grow becomes soaking wet at times. The plants will not tolerate wet conditions for days on end however.

Propagation is from seed.

Euphorbia esculenta in cultivation.

Cyathia

Strumaria gemmata

2010-09-06T13:03:00.000-07:00

Strumaria gemmata occurs in the dry areas of the southern and eastern Cape where the bulbs are usually found on stony hill slopes.

It is a small and attractive little bulb belonging to the family Amaryllidaceae.

The pale yellow flowers appear in autumn and the seeds ripen soon after flowering. The seeds germinate unaided. Propagation is by seed which should be sown in a well drained sandy soil.

The bulbs lose their linear shaped leaves during the hot summer months.

Strumaria gemmata growing on a hill-slope near Oudtshoorn.

Flower.

Brunsvigia josephinae

2010-08-29T05:44:00.000-07:00

Brunsvigia josephinae is a large growing bulb from around Worcester in the Western Cape Province, eastwards through the Little Karoo, to approximately Willowmore in the Eastern Cape Province. Some specimens have been found north of the Swartberg in the Great Karoo.

The winter growing bulbs are usually partly exposed above the ground and the large greenish-gray leaves appear in winter and die back in summer.

The beautiful large dark red flowers on an umbel up to 65 cm long are produced in autumn.

Propagation is from seed or dividing offshoots. Offshoots are however few and far between. Seed grown plants can take 10 years or more to flower.

Brunsvigia josephina flowering in autumn.

Euphorbia fortuita

2010-08-25T13:00:00.000-07:00

Euphorbia fortuita (fortuita means "discovered by chance") is known from a small area between Ladismith and Barrydale in the arid Little Karoo.

The plants resemble Euphorbia colliculina from the Oudsthoorn area, but the cyathia are very pubescent and the involucre glands purple instead of greenish-yellow. The peduncles are not persistent, while those of E colliculina are occasionally persistent.

Euphorbia fortuita is grown from seed. The plants prefer full sun and good drainage with a minimum winter temperature of about - 3 degrees Celsius.

Euphorbia fortuita, an old plant in habitat.

A smaller plant amongst sunbaked quartzite.

Euphorbia fortuita cyathia.

Boophone disticha

2010-08-21T11:37:00.000-07:00

Boophone disticha is a highly poisonous bulb that has a wide distribution and occurs in all provinces of South Africa, in desert regions as well as areas with higher rainfall.

The attractive fan shaped leaves as well as the most striking pink flowers make this bulb a 'must have' for any rock garden. The bulbs protrude partly above the ground and the leaves appear after flowering, which happens at different times of the year depending on the natural distribution of the bulbs. Here in the Little Karoo the bulbs flower at the end of summer. The leaves dry up during the resting period.

Boophone disticha can withstand spells of drought quite well.

Propagation is from seed, which germinate unaided. Sow on top of a sandy soil and cover the seeds with small pebbles to protect them and to help the roots to strike. Growing Boophone disticha is a slow process and the plants take many years before they reach the flowering stage.

Boophone disticha during the growing season.

Boophone disticha in full bloom south of Prince Albert in the Great Karoo.

Immediately after flowering the seeds develop. When the seeds are ripe, the stalk loosens from the plant and is swept away by the wind.

Boophone disticha is also sometimes referred to as Boophane disticha.

Pelargonium echinatum

2010-08-19T13:15:00.000-07:00

Pelargonium echinatum is endemic to the Richtersveld desert in the Northern Cape Province and has also been recorded north of Clanwilliam.

This species grows to a shrub about 1 meter high or higher in ideal conditions. The leaves are lost during the hot summer resting period.

The beautiful white to pink to dark purple flowers with a variety of markings appear in winter.

Water with care during the summer resting months.

Pelargonium echinatum can be propagated from seed or cuttings.

Pelargonium echinatum in cultivation.

Flowers.

Euphorbia schoenlandii

2010-08-11T14:40:00.000-07:00

Euphorbia schoenlandii has its distribution in the Northern Cape Province and is restricted to the districts of Van Rhijnsdorp, Vredendal and Clanwilliam.

These succulents plants are often found growing on plains. They are mostly single stemmed and can grow with age to a height of some 1.3 meter. Usually the plants are shorter.

The plants are rather similar to the slightly smaller Euphorbia fasciculata. One notable difference is that the spines of Euphorbia schoenlandii are modified sterile peduncles (developed similarly to real flower stalks but never produced any cyathia (flowers)), while in E fasciculata the peduncles are fertile. In the latter case the peduncles remain half withered after the seed ripens but never develop into spines.

The bisexual cyathia of Euphorbia schoenlandii develop on shorter peduncles that wither away after the seed ripens.

The stems have attractive tubercles.

Euphorbia schoenlandii is propagated from seed and grown in well drained soil. Leave the soil to dry out well between watering. The plants like hot conditions in summer and full sun. The minimum winter temperature in habitat is about -3 deg Celsius, sometimes lower.

Euphorbia schoenlandii in cultivation.

Euphorbia schoenlandii cyathium with young seed capsule starting to develop.

Euphorbia multiramosa

2010-08-11T12:14:00.000-07:00

Euphorbia multiramosa is distributed on the desert plains of the Richterveld, from Vioolsdrift to Jakkalswater. Further recordings have also been made around Alexander Bay.

This dwarf succulent plant is irregularly shaped and can reach a height of some 20 cm.

Euphorbia multiramosa differs from the related E namaquensis in having a more compact distribution of branches, the peduncles being less persistent than in E namaquensis and the cyathia (specialized flowers) are always produced singly and not in small cymes like often seen in E namaquensis. There are also other floral differences.

When cultivating Euphorbia multiramosa it must be remembered that the plants grow fully exposed in hot desert conditions. Water with care and then leave the soil to dry out for a considerable time.

Propagation is from seed.

Euphorbia multiramosa, a cultivated plant originating from near Umdaus in the Richtersveld.

Cyathia.

Ferocactus wislizeni

2010-08-11T03:28:00.000-07:00

Ferocactus wislizeni naturally occurs in northern Mexico and the southwestern United States. It is a large growing desert cactus, globose when young and elongating with age. Some specimens up to 3 meters high have been recorded. The formidable thorns are curved backwards earning it the common name "Fishhook Cactus". Other names include Arizona Barrel Cactus, Candy Barrel Cactus, and Southwestern Barrel Cactus.

The plants prefer full sun when adult and grow relatively fast compared to some other barrel cacti.

The orange to reddish flowers appear in summer. After flowering big yellow fruits are formed that persist on top of the plant for months.

The propagation of Ferocactus wislizeni is from seed. Growth in the first few years is slow, but accelerates with age.

Ferocactus wislizeni prefers an outside well drained rockery. The plants can withstand a fair amount of watering in summer as long as the soil is not waterlogged. The minimum winter temperature is around -10 deg Celsius or more.

Ferocactus wislizeni in cultivation.

Flowers with seedpods from the previous year.

Piaranthus decipiens

2010-08-11T00:59:00.000-07:00

Piaranthus decipiens is very widely distributed around the arid northern and eastern edges of the Kalahari Desert and this includes parts of Namibia and Botswana where it is occasionally found under trees and shrub.

South African records include the Northern Cape areas of Prieska, Vryburg, Mafikeng and Schweizer-Reinecke

The succulent decumbent stems can grow up to 15 cm long but are usually shorter. The flowers appear in small numbers near the tips of younger stems and are usually brownish becoming paler in the tube. There is quite a bit of variation in the colouring and patterns of the flowers though.

Propagation is from seed or cuttings.

Piaranthus decipiens flowering in cultivation.

Pelargonium fulgidum

2010-08-10T12:54:00.000-07:00

Pelargonium fulgidum is a semi-succulent coastal species which is found from the northern Richterveld desert to about Ysterfontein in the south. The summers are hot and dry, but the plants often receive some early morning fog. Growth is mainly during the winter-rainfall period.

The striking red flowers appear from June to November.

Propagation is from seed or cuttings. Watering should be done mainly during the winter months.

Pelargonium fulgidum flowering in cultivation.

Crassula rupestris subsp. rupestris

2010-08-09T12:37:00.000-07:00

Crassula rupestris subsp. rupestris is widely spread in the semi- desert southern Cape, including the Great- and the Little Karoo.

This succulent plant forms a low shrub approximately half a meter high with brownish-green leaves that have attractive red or brownish margins. The plants prefer rocky slopes and full sun.

The beautiful whitish-pink blooms appear in winter.

The cultivation of Crassula rupestris subsp. rupestris is easy as long as the plants receive good drainage. Propagation is from seed or cuttings.

Crassula rupestris subsp. rupestris in habitat in the Little Karoo.

Flowers.

Euphorbia multiceps (pyramidalis)

2010-08-04T12:01:00.000-07:00

Euphorbia multiceps (pyramidalis) is widely distributed in the hot arid areas from the Tanqua Karoo in the Northern Cape, westerly to the Ceres Karoo in the Western Cape. Some of these areas have a very low rainfall and such sparse vegetation that they can be considered real deserts. Euphorbia multiceps (pyramidalis) appears to avoid these very dry areas.

Close to a farm dam in the Tanqua Karoo I have seen some large specimens grow to a height of 50 cm or even more. Usually the plants are 30 cm or less in height.

The type Euphorbia multiceps borders on the pyramidalis form loosely in the southern parts of the Karoo north of Matjiesfontein and reappears towards Springbok in the Northern Cape. In between these limits the pyramidalis form is found.

The plants differ from the type form of Euphorbia multiceps in that the cone shape is less stable and the plants take on numerous forms. The branches (fingers) are generally relatively longer then in the type, and the thorns are sometimes brownish but this is not always the case. (There are numerous forms of both types of Euphorbia multiceps that I have not seen and some of this information is certainly open to debate.)

The flowers are bisexual and are similar to the type multiceps. The involucre glands are reddish brown initially and turn to brownish green as the flowers mature.

The cultivation of Euphorbia multiceps (pyramidalis) is rather difficult and both seedlings and adult plant are more prone to die in cultivation than the normal Euphorbia multiceps.

Hot summers and light conditions are essential and some drought stress between watering seems to avoid early death to some degree. The minimum recommended temperature in winter is probably around - 3 deg Celsius.

A medium sized cultivated plant of Euphorbia multiceps (pyramidalis).

Flowers.

Haworthia truncata

2010-08-03T14:20:00.000-07:00

In the following discussion I shall mainly refer to Haworthia truncata var. truncata as if it is the form generally known as Haworthia truncata from a number of localities around Oudtshoorn. Some authorities have different opinions on the matter and it is possible to leave out the varietal status altogether.

Haworthia truncata var. truncata has been for many years one of the most popular Haworthia species, and indeed one of the most desirable succulents in collections.

This unique succulent desert plant has its distribution in the district of Oudtshoorn, a town in the heart of the semi-desert Little Karoo in South Africa. ( I shall leave out in this post the variety (or forma) crassa which occurs around the neighbouring town of Calitzdorp, as well as Haworthia papillaris .)

Haworthia truncata differs from the other members of the genus in its distichous leaf arrangement. This distinguishing quality is only shared by some related Gasteria species and two Aloe species. Furthermore the leaves are truncated, deeply sunk into the soil, leaving only the tips of the leaves protruding above. This curious arrangement, together with the truncated leaves have earned the plants the Afrikaans name "Perdetande" (Eng: Horses teeth).

Although Haworthia truncata var. truncata is distributed only around Oudtshoorn, it occurs at a number of localities and there are notable differences between the plants from one location to the next. The plants are however so variable within the populations that it would be difficult to acknowledge numerous varieties.

The plants are found growing usually in rather bare patches of reddish-brown ferri-crete stones (ysterklip in Afrikaans). They invariably nestle themselves between these stones.The plants sometimes grow in the open but prefer to be protected by other shrub. The closely related Haworthia maughanii from Calitdorp has a similar habit.

The cultivation of Haworthia truncata var. truncata is not difficult. The plants like a well drained soil with a little compost and must only be watered when the soil has dried out. Plants should be kept in partial shade. The withdrawal of the leaves into the ground is due to the contractile habit of the thick roots. It is therefore advisable to plant Haworthia truncata in fairly deep pots.

The propagation is from seed, leaf-cutting or root cuttings. A leaf-cutting should be made exactly at the base of the leaf. The wound must be allowed to dry for a day or two, after which it can be planted in peat or similar medium. Thick roots can be taken off at the base of the plant and planted with the top part protruding above the ground. These should start making new plantlets within a couple of weeks or months. Haworthia truncata is a slow grower and it takes many years to produce a sizable plant.

Some plants have beautiful white marking which have kindled the imagination of especially Japanese growers and through selective cross pollination and hybridization have created some exceptionally attractive cultivars. Some of these cultivars are now being pollinated and hybridized with natural and other material in South Africa by Mr. Gerhard Marx.

Haworthia truncata var. truncata from north of Dysselsdorp. Robust plants that are often well marked with indentations on the leaf edges.

Haworthia truncata var. truncata from south of Dysselsdorp. This locality has not been seen by many people. The plants are only lightly tubercled giving the leaf surface a shiny appearance. Some plants have white markings while others are plain.

Haworthia truncata var. truncata also originating from south of Dysselsdorp. The smooth surface is typical but the plant has some markings and smoothly curved leaf-edges.

Haworthia truncata var. truncata hiding under bushes near Volmoed south-west of Oudtshoorn.

Haworthia truncata var. truncata from Buffelsdrif north of Oudthoorn. The neatly arranged leaves are typical here.

Haworthia truncata "Princess". An attractive natural from Buffelsdrift grown from a leaf cutting.

Selecting parents have produces numerous white markings. A cultivar from Mr. Gerhard Marx.

A beautiful cultivar with yellow-green markings also created Mr. Marx.

An old variegated plant with numerous heads created by Mr. Marx.

Haworthia "Truleigh" . A horticultural hybrid at Leopoort Succulents created by crossing Haworthia truncata and Haworthia leightonii.

Haworthia truncata GM 569 ( Schoemanshoek). Created by Gerhard Marx by selecting the parents for specific qualities from the same locality.

Haworthia truncata ( Schoemanshoek form) . Another selected seedling from Mr. Marx.

A horticultural cultivar probably from Japanese origin. Cultivated by Gerhard Marx.

From the collection of Mr. Marx.

From the collection of Mr. Marx.

From the collection of Mr. Marx.

Brilliant white markings on the leaves. Original plant from Dr. M. Hayashi.

Attractive white markings with dark green islands. This plant originates from Mr. Seiji Sakai.

Haworthia truncata seedings from Schoemanshoek. Markings develop with age.

Haworthia truncata seedlings from Dysselsdorp.

Hoodia cv. gordulata

2010-08-03T11:48:00.001-07:00

Hoodia cv. gordulata is an horticultural hybrid created by cross-pollinating Hoodia gordonii and Hoodia pilifera var. annulata.

This cultivar has exceptionally attractive maroon flowers that appear in mid-winter.

The cultivation is similar to that of the parent plants.

Hoodia cv. gordulata flowering at Leopoort Nursery in July.

Flower.

Haworthia suberecta

2010-07-31T13:15:00.001-07:00

Haworthia suberecta grows in typical fashion on almost vertical cliffs, and often prefers the northern sun-baked slopes of hills and ravines.The plants seem more resilient to these adverse conditions than many other Haworthia. The leaves are usually semi-erect but there is some variation in the recurving of the leaves.

Haworthia suberecta appears in a number of forms from around Mossel Bay to probably about Brandwacht some 15 km. to the north. Plants from the gorges of the Gouritz River further east may perhaps also fall within this taxon. ( See footnote )

Haworthia suberecta is usually a happy plant in cultivation and does not seem to need the hot and adverse conditions they thrive on in habitat. The plants proliferate freely from the base, both in nature and cultivation.

A well drained slightly composted sandy soil should do well. Too much watering can harm the roots.

Synonym: Haworthia turgida var. suberecta (Sensu M.B. Bayer)

Haworthia suberecta at Brandwacht north of Mossel Bay. The red colour is due to sunburn. The plants normally turn light green in cultivation.

Haworthia suberecta habitat. Bare slopes where little else grows seem ideally suited for this species.

Proliferation is the order of the day.

Haworthia suberecta near Hartenbos Dam

Pelargonium rapaceum

2010-07-30T13:55:00.000-07:00

Pelargonium rapaceum has a wide distribution in South Africa keeping mostly to the western and southern parts of the country. The plants occur from the dry Richtersveld desert in the Northern Cape Province all the way south to the higher rainfall areas of the south-western Cape, and from there eastwards into the Eastern Cape Province.

Pelargonium rapaceum has a turnip-like underground tuber which can partly protrude on top of the soil with age. The plants are winter growing. The tuber is protected from dessication in the dry summer months with protective scaly bark (periderm) around the body.

The cultivation of Pelargonium rapaceum is not difficult and the plants can grow in a variety of soils, but a sandy soil is preferred. Propagation is from seed.

Pelargonium rapaceum from the Little Karoo.

Pelargonium rapaceum flowers.

A plant setting seed in early December. Photographed in habitat near Oudtshoorn.

Echinocactus palmeri

2010-07-29T12:27:00.000-07:00

Echinocactus palmeri ( Echinocactus platyacanthus var. palmeri ) is an attactive large growing 'Barrel Cactus' that naturally occurs in the state Zacatecas, Mexico.

The plants are globular at first and become elongated with age. Old plants can attain a diameter of about 50 cm and a height of some 2 meters. The plants have stout yellowish-brown spines.

The diurnal flowers are yellow, laced on the edges and are produced in summer.

Echinocactus palmeri likes a normal well drained cactus compost and a sunny position. Older plants can endure mild frost (-3) in winter quite well. Watering should be done mainly in summer.

Echinocactus palmeri at Leopoort Nursery.

Echinocactus palmeri flowers.

Gasteria croucheri

2010-07-29T09:53:00.000-07:00

Gasteria croucheri is part of the coastal and midland flora of the Transkei and Kwa-Zulu Natal.

It is an attractive and large growing Gasteria with lanceolate and triangular leaves.
Plants of the southern coastal areas that were earlier regarded as Gasteria croucheri are now considered to be Gasteria acinacifolia.

The flowering time is from October to January.

The cultivation of Gasteria croucheri is easy. The plants like a well drained soil. Propagation is from seed or leaf cuttings.

Gasteria croucheri near Blaauwkrantz.

Gasteria croucheri from Charlgrove.

Haworthia wimii

2010-07-28T00:35:00.000-07:00

Haworthia wimii grows at a few localities near the Langeberg mountain range in the Little Karoo amongst succulent and mountainous flora.

The lanceolate leaves with minute hairs show some affinity with Haworthia paradoxa, which grows about 50 km towards the south near a coastal village called Vermaaklikheid.

Haworthia wimii is found in rock crevices, but also lower down on level ground between quartz and pebbles.

Synonym: Haworthia emelyae var. major (Sensu M.B. Bayer).

Haworthia wimii growing in a rock crevice in mountainous habitat.

Haworthia wimii lower down under on level ground.

Some beautiful natural cultivars have been found, as well as hybrids created. Here follow a few examples.

Haworthia wimii JDV 95/23 - originating from a plant found in nature.

A Haworthia wimii cultivar from hybrid origin created by Gerhard Marx.

A cultivar obtained by crossing Haworthia wimii and Haworthia marxii. Created by Gerhard Marx.

Euphorbia sp. (Addo)

2010-07-27T14:52:00.000-07:00

This undescribed Euphorbia species from the Addo district in the Eastern Cape Province has green involucre glands and a long tap root similar to many medusa-head Euporbias.

Side-shoots are produced freely with age.

The cultivation of this Euphorbia has so far proved non-complicated. The plants are drought resistant and probably will not take well to frequent watering.

Euphorbia sp. in habitat in the Addo district.

Cleistocactus strausii

2010-07-27T12:42:00.000-07:00

Cleistocactus strausii is a branching columnar cactus from the high mountain ranges of Bolivia and Argentina.

The beautifully spined plants can reach a height of approximately 1 meter or more. Each areole has about 30 or more white spines as well as four longer yellowish spines. Old plants can form large clumps.

The long thin red flowers are diurnal and appear in summer.

Cultivation requires a well drained cactus compost, full sun and adult plants can withstand frost quite well. Propagation is from seed or cuttings. The wounds from the cuttings should be allowed to dry properly before planting as otherwise rot sets in easily.

Although the plants in habitat normally do not get subjected to high summer temperatures, plants at (Little Karoo) have thrived in summer temperatures of over 40 degrees Celsius. The plants do not set seed under these conditions easily though.

Cleistocactus strausii in cultivation.

Cleistocactus strausii flowers.

Lampranthus aureus

2010-07-26T11:25:00.000-07:00

Lampranthus aureus is distributed along the southwest and west coast of the Western Cape between Vredenburg and Saldanha.

The plants seem to have a preference for sandy, loamy soils and granite outcroppings.

The striking brilliant orange flowers make the plants ideal for a showy garden display. They are easy to cultivate if protected from severe frost and grown in a sunny location. The plants are best suited for rockeries or plant containers with sufficient root space and can withstand regular watering as long as the soil has good drainage.

Propagation is from seed or cuttings.

Lampranthus aureus in cultivation.

Lampranthus multiradiatus

2010-07-25T15:12:00.000-07:00

Lampranthus multiradiatus as originally described has pale pink flowers and is distributed on the Cape Peninsula in the Western Cape Province.

The plants form a decumbent shrub and grow to a height of about half a meter.

A number of other fig marigolds (vygies), previously known as Lampranthus roseus have now been included in this species.

The cultivation of Lampranthus multiradiatus is easy and the plants will do best in a sunny well drained rockery.

Propagation is by seed or cuttings.

Lampranthus in cultivation.

Lampranthus multiradiatus flower.

Commiphora gracilifrondosa

2010-07-25T11:37:00.001-07:00

Commiphora gracilifrondosa is from the Burseraceae family and occurs in the extremely hot and arid desert around the Orange River in Namibia and the Northern Cape Province where it has been found from Goodhouse in the west to Kenhardt in the east. The plants were described in 1928 by Moritz Kurt Dinter.

Commiphora gracilifrondosa has a thick succulent stem with branches and can reach a height of up to 3 meters.

The flowers are greenish-yellow. Propagation is from seed or cuttings.

Locally the plants are known as Karee-leaved Commiphora, Karree Corkwood or Stink Corkwood.

Commiphora gracilifrondosa in the Karoo Botanical Garden at Worcester. The original plant is from Pella in the Northen Cape Province.

From our Commiphora bookstore:

Haworthia radula

2010-07-23T12:43:00.000-07:00

Haworthia radula is only known from the area around Hankey in the Eastern Cape Province.

This species is very closely related to the similar Haworthia attenuata, but differs in that it has many small white tubercles on the leaves whereas Haworthia attenuata has fewer and larger tubercles.

Haworthia radula is an easy plant in cultivation and requires no special care except for good drainage of the soil.

The plants readily proliferate from the base and can form large clumps.

Synonym: Haworthia attenuata var. radula (Sensu M.B. Bayer)

Haworthia radula in habitat.

Conophytum burgeri

2010-07-22T13:42:00.001-07:00

Conophytum burgeri has a very localized distribution around the mines near Aggenys.

This strange looking desert plant is often aptly referred to as "Burger's Onion".

Unlike many conophytums (e.g. Conophytum wettsteinii and Conophytum stephanii ) it is a spring and summer growing plant. During winter the plants are covered by a white sheath. The plants usually consist of a single body and will rarely make 2 or 3 bodies. Propagation therefore is only by seed.

The plants are very slow growing, but otherwise not difficult to cultivate. Sowing in early summer gives best results.

Old plants can reach the size of a chicken egg.

The flowering time in South Africa is April-May.

Conophytum burgeri flowering in early May.

Conophytum burgeri flower.

Aloe castanea

2010-07-21T10:59:00.000-07:00

Aloe castanea is found from Witbank northwards to Lydenburg in Mpumalanga and Pietersburg in the Northern Province. The Aloes become tree-like with age with several spreading branches.

The brownish-orange flowers appear in June to August. The inflorescences that spread in different directions have an untidy appearance , hence the common name Cat's-tail Aloe. This is a distinctive feature not shared by other Aloes. Additionally the brown nectar produced by the flowers is quite uncommon.

Aloe castanea is an easy plant to cultivate and can withstand frost and heat.

Aloe castanea, a large adult plant in the Karoo Botanical garden.

Aloe castanea younger plants in full flower.

Aloe castanea flowers. The brown nectar is easily visible.

Hoodia currorii

2010-07-20T00:17:00.000-07:00

Hoodia currorii is distributed in the Namib Desert from about Walvis Bay (Namibia) in the south to Dombe Grande (Angola) in the north. The is is a large stretch of around 1000 km. In Angola the plants are mainly restricted to the coastal Namib Desert, but in Namibia the plants spread from the Namib also further eastwards.

Hoodia currorii is often easily recognized by its untidy sprawling stems. The plants are quite variable though and at certain localities where the stems are more tidy and upright, the plants can easily be confused with Hoodia gordonii and Hoodia macrantha.

The flesh coloured flowers are variable is size up to about 170 mm in diameter and can be almost circular to 5-lobed. The flowers are also highly variable.

In cultivation Hoodia currorii prefers a sandy soil, high heat in summer and watering should be alternated with periods of drought.

Hoodia currorii, a cultivated plant originating from the Swakopmund area in Namibia.The plants from this area are smaller and were once considered as Hoodia currorii var. minor

Neoporteria esmeraldana

2010-07-19T13:13:00.000-07:00

Neoporteria esmeraldana hails from Chile and is a small cactus reaching a height of about 5 to 7 cm.

Cultivation is not difficult and good drainage is required as well as protection from frost. The plants should be kept in a bright place.

At Leopoort the plants flower in January.

Neoporteria esmeraldana flowering in cultivation.

Haworthia picta var. picta

2010-07-18T13:08:00.001-07:00

Haworthia picta var. picta has its distribution in the Southern Cape in the vicinity of Oudtshoorn in the arid Little Karoo.

The plants grow amongst pebbles and are withdrawn into the soil exposing mostly only the upper leaf surface.

They are usually protected from the full sun by other shrub. Very often this is Elytropappus rhinocerotos (renosterbos).

The plants have the typical "star shape" of the retuse Haworthias and are attractive plants due to the colouring and markings on the leaves as well as the translucent dots on the lower leaf surface.

Their is much variation in these markings and also the colour, making Haworthia picta var. picta a sought after species and an excellent candidate for creating cultivars.

The cultivation of this species is similar to many others in the genus. The plants are mostly winter growing and detest being waterlogged close to the soil surface.

Synonym: Haworthia emelyae var. emelyae (Sensu M.B. Bayer)

Haworthia picta var. picta in habitat south of Oudtshoorn.

An attractive specimen with many white dots.

The red colour of the leaves maybe partly, but not entirely due to sunburn. Many plants at this locality near Doornrivier have a red colouration of the leaves, even in cultivation.

The following pictures represent cultivars created by selecting certain characteristics:

A red cultivar created by Gerhard Marx by selecting reddish parents.

Haworthia picta var. picta from Moerasrivier. Parent selection by Gerhard Marx.

An exceptionally beautiful Japanese cultivar.

Euphorbia cylindrifolia subsp. tuberifera

2010-07-18T03:17:00.001-07:00

Euphorbia cylindrifolia subsp. tuberifera naturally occurs in Madagascar where it is found in tropical or subtropical dry forests or shrubland. It is a rhizomatus succulent subshrub, grows to about 25 cm in diameter and has an underground caudex.

The flowers have a pale apricot colour.

In cultivation Euphorbia cylindrifolia subsp. tuberifera prefers partial shade and should be protected from frost.

Propagation by cuttings is difficult and the plants should be grown from seed.

Euphorbia cylindrifolia subsp. tuberifera in cultivation.

Euphorbia cylindrifolia subsp. tuberifera flowers.

Tylecodon schaeferanus

2010-07-18T01:02:00.001-07:00

Tylecodon schaeferanus is a small species from Luderitz Bay on the west coast of Namibia in the Namib Desert. The plants are winter growing and have swollen greenish leaves.

Tylecodon schaeferanus has a tuberous root and the short light coloured stems are covered with fissured bark.

The flowers appear approximately in February at the end of the growing season.

Tylecodon schaeferanus in cultivation.

Tylecodon schaeferanus flower and buds.

Euphorbia triangularis

2010-07-17T13:52:00.000-07:00

Euphorbia triangularis is the most common tree Euphorbia in the Eastern Cape Province. Their distribution extents from the Uitenhage district northwards into KwaZulu-Natal.

The branches of Euphorbia triangularis can be 3, 4 or 5-angled. The 3-angled form occurs more in the Eastern Cape and the 5-angled form in KwaZulu-Natal. The branches are segmented and deciduous, leaving older trees with a naked trunk and a whorl of branches at the top.

The trees can grow up to 18 m high.

The cultivation of Euphorbia triangularis is quite easy. The plants can withstand a considerable amount of water as long as the soil has good drainage. The plants can be propagated from seed or cuttings.

Euphorbia triangularis in the Karoo Botanical Garden in Worcester.

Aloe lineata var. lineata

2010-07-17T06:38:00.000-07:00

Aloe lineata var. lineata is normally found in thick shrub where it occurs in the southern portions of the Eastern Cape Province from Grahamstown westwards.

The leaves are bluish with distinct reddish lines. The plants are stem forming with age and may reach a height of about 2 meters. The flowers appear in summer from January to March. The flower colour varies from light pink to red.

At times the plants hybridize with Aloe ferox or other Aloes when their habitats overlap.

The cultivation of Aloe lineata var. lineata is quite easy, but the plants do not like severe frost.

Propagation is from seed.

Aloe lineata var. lineata from Alexandria.

Aloe lineata var. lineata flowers.

Hoodia pilifera subsp. pillansii

2010-07-15T12:00:00.000-07:00

Hoodia pilifera subsp. pillansii occurs at a number of localities in the western - and middle Great Karoo. Scattered colonies exist in the vicinity of Ngaapkop, Kruidfontein, Matjiesfontein and other places.

The flowers are quite small with the corolla mostly pinkish-yellow and the corona yellow with a strong evil smell.The pedicels are relatively long making the flowers sometimes slightly droopy.

The cultivation requirements of Hoodia pilifera subsp. pillansii are similar to many others in the genus. The soil must be well drained, the minimum temperature preferably not less then about -3 deg Celsius. Good light and ventilation are essential and watering should be alternated with periods of drought. The plants need time to harden off between periods of growth to reduce the chance of fungal infections.

Hoodia pilifera subsp. pillansii in cultivation.

Hoodia pilifera subsp. pillansii stem with flowers.

Euphorbia horrida 'Snowflake'

2010-07-14T13:08:00.000-07:00

Euphorbia horrida 'Snowflake' is probably one of the most attractive forms of this variable genus. The plants do not form massive thorns on the ribs like some other Euphorbia horrida, obscuring the differences between Euphorbia horrida and the closely related Euphorbia polygona. The beautiful white coated epidermis makes this plant a highly prized item in succulent collections.

Their natural habitat is in the vicinity of Joubertina in the Eastern Cape Province where the plants form large clumps, consisting of numerous branches, on the rocky hill sides.

Euphorbia horrida 'Snowflake' is a mountain dweller and the rainfall can be considerably higher in these areas then in the desert Karoo.

In habitat the species grows in a well drained composted and sandy soil, giving an indication of its preference in cultivation.

Euphorbia horrida 'Snowflake' in habitat. A large adult plant.

A smaller plant. Even a plant this size takes many years to grow from seed.

Euphorbia horrida 'Snowflake' flowers and seedpods. The purple involucre glands are similar to those of Euphorbia polygona and a few varieties of Euphorbia horrida. The type Euphorbia horrida has green glands.

Euphorbia squarrosa

2010-07-14T13:04:00.000-07:00

Euphorbia squarrosa is from the Eastern Cape Province, where it is found in the Albany, Fort Beaufort, Bathurst and King Williams Town districts.

The plants have a deep tuber and are related to Euphorbia stellata, but the prostrate stems are mostly three angled and lack the feather-like markings of E stellata. Euphorbia squarrosa is also a more robust grower.

The cultivation of Euphorbia squarrosa is relatively easy. A well drained soil is essential.

Euphorbia squarrosa in habitat in the Fort Beaufort district.

Euphorbia crispa

2010-07-13T12:01:00.000-07:00

Euphorbia crispa is named after its "crisped" or wavy leaves. The distribution of the plants is in the Western - and Northern Cape including the Malmesbury, Ceres, Clanwilliam, Van Rhynsdorp and Calvinia disticts.

The subterranean nature of Euphorbia crispa is similar to that of Euphorbia silenifolia. Euphorbia crispa has fewer cyathia in each umbel however and the involucre gland are greenish yellow.

The plants are unisexual and winter growers.

The cultivation of Euphorbia crispa is relatively easy in a well drained soil. Moderate watering during the winter months and little during the summer resting period.

Euphorbia crispa, two male plants from the Pakhuis Pass near Clanwilliam.

Euphorbia stellata

2010-07-12T11:45:00.001-07:00

Euphorbia stellata grows amongst grass and pebbles in the Eastern Cape in the districts of Port Elizabeth, Albany and Peddie. The root and stem form one large subterranean tuber. The branches are prostrate with paired spines on the margins.

Euphorbia stellata prefers a well drained soil. In habitat the plants often grow fully exposed. In very hot areas the plants may need some protection from the sun.

Euphorbia stellata in habitat.

Gasteria vlokii

2010-07-12T03:14:00.001-07:00

Gasteria vlokii is a mountain dweller. The plants have their distribution in the Swartberg mountain range which forms the natural border between the two semi-desert regions, the Little Karoo and the Great Karoo. Gasteria vlokii is also found in the Witteberg mountains in the Willowmore district.

The plants are distichous when young and rosette-forming when older. Protection from the sun seems an important component of their survival and Gasteria vlokii is usually found under bushes or in rock crevices.

So far their seem to be two forms, a small and a larger growing form.

Gasteria vlokii is quite easy to cultivate. Good drainage is essential and a mixture of sand and compost should be ideal. The plants are fairly frost resistant as in their natural habitat the plants are occasionally covered with snow during the winter months.

The inflorescence is a simple raceme and the flowers are red-pink.

Gasteria vlokii, the small form, in a rock crevice en route Gamkaskloof in the Swartberg,

Gasteria vlokii can form huge clumps on the steep ledges.

A larger form on the Swartberg Pass in flower.

Pseudolithos cubiformis

2010-07-11T10:24:00.000-07:00

The natural distribution of Pseudolithos cubiformis is in north-eastern Somalia.

This strange looking succulent from the Milkweed family has the largest flowers in the genus.

Pseudolithos cubiformis, like others in the genus, are quite difficult in cultivation. Careful watering and protection against frost is essential.

The plants were first described by Peter René Oscar Bally in 1965.

Synonyms: Lithocaulon cubiforme, Pseudolithos cubiformis.

Pseudolithos cubiformis flowering in cultivation.

Pelargonium curviandrum

2010-07-10T14:56:00.000-07:00

Pelargonium curviandrum is endemic to the Little Karoo in the Southern Cape. This small geophyte is occasionally found growing in the open, but mostly prefers cooler aspects like the protection of other shrub, and avoiding the hot northern slopes of hillsides.

The leaf shape is reminiscent of the common garden Pelargonium (Geranium) with palmate venation and crenate margins. There is extreme variation in the indentation of the leaf margins however, even at the same locality, making the species almost unrecognizable from one plant to the next.

The plants are dormant in summer and only become visible when the leaves appear during the cooler season.

At Leopoort, south of Oudtshoorn, the attractive yellow flowers with variable patterns of maroon, have been observed at the end of the dormant season around March. Mr. Charles Craib (Geophytic Pelargoniums (2001) - Umdaus Press) mentions plants flowering consistently around October and November. This could perhaps point to variation at different localities.

The tuber of Pelargonium curviandrum is elongated or roundish forming secondary tubers underground with age.

Pelargonium curviandrum can be propagated from seed or dividing the tubers.

Please note that some of the following images are indeed NOT of Pelargonium curviandrum. I shall rectify as soon as possible.

Pelargonium curviandrum with the leaf shape somewhat similar to the garden varieties.

Pelargonium curviandrum showing greater leaf indentation.

Pelargonium curviandrum with extreme leaf indentation- almost not to be recognized as the same species.

Pelargonium curviandrum flowers.

Luckhoffia beukmanii

2010-07-09T14:36:00.000-07:00

Luckhoffia beukmanii, the only member of the genus, occurs in the Pakhuis Mountains in the vicinity of Clanwilliam.

The possibility of the plant being an intergenerig hybrid between Stapelia arenosa and a Hoodia species has been suggested.

Luckhoffia beukmanii in cultivation.

Copiapoa hypogaea

2010-07-08T22:00:00.000-07:00

Copiapoa hypogaea is small globular cactus reaching a diameter of about 6.5 cm. The plants are native to Chile (Antofagasta).

The yellow flowers occur in summer, arising from the woolly crown of the plants.

Copiapoa hypogaea should be watered with care and requires a well drained compost. The recommended minimum temperature is 10 deg Celsius.

Copiapoa hypogaea. The 'lizard skin' form.

Copiapoa calderana subsp.calderana

2010-07-08T13:08:00.000-07:00

Copiapoa calderana subsp.calderana is a cactus native to Chile (Coastal areas of Atacama). In habitat the plants reach a height of approximately 30 cm.

The plants grow under desert conditions with extremely low rainfall. Copiapoa calderana subsp.calderana survives in habitat mainly on the condensation of fog.

The flowers are yellow.

Grow in good light but protect from full sun.

The plants prefer a well drained soil which should be watered only when dry.

Protect from frost.

Synonymn: Copiapoa lembeckei

Copiapoa calderana subsp.calderana flowering in cultivation.

Larryleachia picta

2010-07-08T11:09:00.000-07:00

The distribution of Larryleachia picta is from central Botswana to southern Namibia.

The succulent plants grow in arid desert like areas and prefer high light intensity.

The cultivation of Larryleachia picta is not difficult provided the soil has good drainage and allowed to dry out between waterings. Similar to other Asclepiads, good ventilation is essential to prevent rot.

The plants can withstand mild frost quite well. Temperatures of up to -5 deg. Celsius have apparently had no negative impact on them.

Larryleachia picta has been known by various other names. These older names are either from plants previously regarded as separate species or are invalid for other reasons. These include Trichocaulon meloforme, Larryleachia meloformis, Lavrania picta subsp. picta, Leachia meloformis, Leachia picta, Leachiella meloformis, Leachiella picta, Trichocaulon engleri, Trichocaulon pictum, Trichocaulon simile, Hoodia meloformis.

Larryleachia picta in cultivation.

Larryleachia picta flower and buds.

Euphorbia globosa

2010-07-05T12:43:00.000-07:00

Euphorbia globosa is from the Eastern Cape Province. The plants grow amongs grass and pebbles in the districts of Port Elizabeth and Uitenhage.

An interesting feature of Euphorbia globosa is that the branches form small segments, either globular or elongated on the same plant. The plants have a contractile habit and older segments are drawn into the soil. Euphorbia globosa can form large mats with age.

The cultivation of Euphorbia globosa is not difficult. A sandy soil with good drainage is preferred.

Euphorbia globosa in habitat.

Duvalia parviflora

2010-07-03T14:11:00.001-07:00

Duvalia parviflora is found in the semi-desert Little Karoo between Ladismith and Laingsburg and also around Van Wyksdorp. It is an uncommon species and the distribution overlaps with that of the somewhat similar Duvalia caespitosa . The plants grow usually protected from the sun under larger shrub.

Duvalia parviflora has attractive creamy flowers with shades of green and yellow.

Duvalia parviflora is easy to cultivate if given a well drained soil and watered only occasionally.

Duvalia parviflora in cultivation.

Gasteria brachyphylla var. bayeri

2010-07-02T11:35:00.000-07:00

Gasteria brachyphylla var. bayeri is endemic to the Little Karoo in the areas of Oudtshoorn, Calitzdorp and Ladismith. The plants are happiest on the cooler southern slopes of hillsides and are often well protected from the sun under bushes.

Gasteria brachyphylla var. bayeri is a smallish species and the diameter normally does not exceed 15 cm. The short distichous obtuse leaves often remain quite horizontal while others grow more upright.

The flowers consist of a raceme and the colour of the perianth is orange-red and whitish green towards the tip.

Gasteria brachyphylla var. bayeri is quite easy in cultivation and needs good drainage for optimal growth.

There are a number of instances where this variety occurs with the larger typical variety in nature. In between forms from possible hybridization exist making there identification sometimes a bit difficult.

Gasteria brachyphylla var. bayeri in habitat. An attractive form with many white markings and upright leaves.

Gasteria brachyphylla var. bayeri flower.

Aloe micracantha

2010-07-02T02:15:00.001-07:00

Aloe micracantha is the only gras Aloe that occurs naturally amongst fynbos vegetation. The distribution is in the Eastern Cape Province where the plants are found between Uniondale in the west and Grahamstown in the east.

The species name "micracantha" refers to the minute teeth on the margins of the leaves, although some other Aloes even have smaller teeth.

Aloe micracantha flowers from November to February and the flower colour is red, salmon-pink or orange.

The plants do not transplant well and should be grown from seed. Aloe micracantha prefers a well drained sandy soil.

Aloe micracantha in habitat.

Haworthia calcarea

2010-07-01T12:00:00.000-07:00

Haworthia calcarea occurs in the De Hoop Nature Reserve in the Western Cape. The plants are found growing on low limestone outcroppings.

This small plant is a relatively fast grower in cultivation when compared to some other Haworthia. Haworthia calcarea readily proliferates from the base in cultivation and in nature.

The flowers are whitish and similar to other species of the genus.

Synonyms: Haworthia mirabilis var. calcarea (Sensu M.B. Bayer).
Haworthia rossouwii var. calcarea (Sensu M.B. Bayer).

Haworthia calcarea in De Hoop Nature Reserve.

Haworthia calcarea can form large clumps.

Haworthia calcarea , an exposed plant beaten by the sun.

Ferocactus emoryi

2010-06-27T13:26:00.000-07:00

Ferocactus emoryi occurs in Mexico (Sonora) as well as in Arizona in the USA.

It is a large growing globular cactus eventually becoming columnar with age. Ferocactus emoryi can reach a height of about 1.5 meter.

Adult plants prefer full sun, while seedlings should be shaded.

The cactus flowers in summer and the flower colour can be red or yellow.

The given minimum temperature in some literature is 10 degrees Celsius. At Leopoort in the Southern Cape our adult plants have regularly withstood temperatures of -3 Celsius in midwinter, sometimes even lower, with no harm done. The plants should be watered mostly in summer and very sparingly (if at all) in winter.

The plants prefer a porous slightly calcareous soil.

Ferocactus emoryi is usually a solitary species and can only be propagated from seed.

Ferocactus emoryi flowering in cultivation.

Ferocactus emoryi flowers.

Euphorbia silenifolia

2010-06-25T14:13:00.001-07:00

The distribution of Euphorbia silenifolia extents from the Western Cape to Port Alfred. The plants prefer areas with higher rainfall and avoid desert-like Karoo areas.

Euphorbia silenifolia is a geophyte (subterranean species) which grows during the winter months. The plants are not visible during the summer. During autumn the thin leaves start to grow from the apex of the underground stem.

Euphorbia silenifolia is unisexual producing male and female flowers on different plants.

The flowering time in habitat is in May and June.

Euphorbia silenifolia, a male plant in cultivation.

Ammocharis coranica

2010-05-22T11:59:00.000-07:00

Ammocharis coranica is widely distributed in many parts of South Africa as well as some of its neighbouring countries.

The large growing bulbs occur in desert-like as well as subtropical areas.

Ammocharis coranica is often referred to as a summer growing species. This not entirely true as the plants are winter growing in the winter rainfall areas. In cultivation however, the plants grow at any time of the year if they receive water.

The beautiful flowers vary in colour from creamish white to pink or even red depending partly on their natural distribution. There is also variation in the leaf arrangement and their inclination to the ground. At many Eastern Cape localities the leaves lie in a neatly shaped pattern almost flat on the ground. Near Oudtshoorn in the arid Little Karoo the rather shapeless leaf arrangement tends to be more upright.

Flowering time, at least in the winter rainfall areas, is in autumn. The fleshy seeds develop immediately after flowering and germinate unaided.

The bulbs are easy to grow from seed and should preferably be sown in a sandy soil. It takes many years for the bulbs to reach flowering size. In 2010 six year old Ammocharis coranica seedlings at Leopoort had not flowered yet.

Ammocharis coranica from Kommadagga in the Eastern Cape.

Ammocharis coranica near Oudtshoorn.

Ammocharis coranica with pinkish cream flowers.

Hoodia grandis (coleorum)

2010-04-27T13:21:00.000-07:00

Hoodia grandis (coleorum) seems confined to the area south of Calitzdorp in the Little Karoo. The distribution of these plants from the section Trichocaulon is adjunct and far removed from any other plants of Hoodia grandis, which are largely inhabitants of the area south of Laingsburg.

The yellow flowers are notably different to other Hoodia grandis, but according to P.V. Bruyns show enough affinity with the other members of this quite variable species to justify its taxonomical position.

The coleorum form is a very interesting discovery as it occurs in the distribution area of Hoodia pilifera subsp. pilifera, the only other, and rather uncommon, but widespread Hoodia species of the Little Karoo.

Synonymns: Hoodia coleorum, Hoodia colei.

Hoodia grandis (coleorum) in habitat south of Calitzdorp.

Hoodia grandis (coleorum) stem with flowers.

Hoodia grandis (coleorum) flower.

Euphorbia pseudoglobosa

2010-04-24T14:27:00.000-07:00

Euphorbia pseudoglobosa is endemic to the Southern Cape coastal area from the Riversdale district westwards.

The main stem and tuberous root of the plants form one underground body, with the branches protruding partly above. The plants appear to be related to Euphorbia susannae and Euphorbia juglands both of which are found in the desert-like Little Karoo.

Propagation is from seed or cuttings. Euphorbia pseudoglobosa should be planted in a well drained sandy soil. Cultivation is not difficult if the soil is allowed to dry out between waterings.

Euphorbia pseudoglobosa from Rooivlei.

Euphorbia pseudoglobosa, a female plant full of fruit.

Conophytum wettsteinii subsp. wettsteinii

2010-04-24T13:16:00.000-07:00

The distribution of Conophytum wettsteinii subsp. wettsteinii is mainly in the Richtersveld mountain desert from Steinkopf in the south to approximately Kouefontein in the north.

Cultivation is very easy and the plants seem to be resistant to over watering.

The flowers are magenta to pink and occur in autumn.

Conophytum wettsteinii subsp. wettsteinii in cultivation.

Conophytum wettsteinii subsp. wettsteinii flower.

Gibbaeum nebrownii

2010-04-24T12:39:00.000-07:00

Gibbaeum nebrownii is restricted to the barren shale desert hillsides west of Ladismith in the Little Karoo.

The plants are small and partly withdrawn into the soil. They are easily overlooked when exploring the area, blending perfectly with their surroundings.

Gibbaeum nebrownii is quite easy to cultivate if one is mindful not to over water the plants.

The pink flowers appear in April.

Gibbaeum nebrownii was previously known as Imitaria muirii.

Gibbaeum nebrownii in cultivation.

Gibbaeum nebrownii flower.

Gibbaeum nebrownii from Kareerivier.

Lithops werneri

2010-04-22T12:09:00.000-07:00

Lithops werneri is one of the smallest Lithops species.The plants usually have distinct branched markings. The plants are known from only one locality south of the Erongo Mountains and to the north of Usakos, Namibia. It occurs amongst weathered granite gravel.

Lithops werneri has yellow flowers.

Lithops werneri. A flowering specimen in cultivation.

Some dust particles visible after a sand storm.

Conophytum ernstii subsp. cerebellum

2010-04-20T12:33:00.000-07:00

The distribution of Conophytum ernstii subsp. cerebellum seems marginalized to a small area east of Sandberg in Namibia.

The flowering time is in autumn and the flowers are rosy-pink on the outside, changing to whitish in the middle.

Conophytum ernstii subsp. cerebellum is easy to cultivate. Like all Conophytums the plants are dormant in summer and get protected with a white or brown sheath (skin) over the plant bodies during this time. Watering should be minimal during the summer months.

Conophytum ernstii subsp. cerebellum. Plant bodies start to break through the protective skin after the dormant period.

Conophytum ernstii subsp. cerebellum flower.

Crassula tecta

2010-04-18T06:48:00.000-07:00

Crassula tecta occurs mainly in the semi-desert Little Karoo from Montagu to Oudtshoorn. The plants are also found in the Eastern Cape in the Willowmore district. These small succulent plants have greyish-green leaves that are covered with white tipped papillae to reflect the sunlight.The plants grow in arid conditions and are fully exposed to the sun.

Crassula tecta is easy to cultivate, but the plants should be kept in a sunny location to ensure its natural appeal.

The white flowers appear from April to June.

Crassula tecta in shale south of Oudtshoorn.

Crassula tecta in flower.

Tanquana hilmarii

2010-04-13T12:51:00.000-07:00

Tanquana hilmarii is a small succulent from the desert like area south of Laingsburg in the Great Karoo. The greyish-green plantbodies have translucent dots and are only a few centimeters in diameter.

In habitat the plants are almost invisible in between the brown pebbles amongst which they grow.

Tanquana hilmarii was previously know as Pleiospilos hilmarii. Plants from the genus Tanquana differ from Pleiospilos in that the leaves are smooth instead of rough. The fruit capsules are also different.

The yellow flowers appear in April.

Tanquana hilmarii is rather difficult to cultivate.

Tanquana hilmarii in cultivation.

Tanquana hilmarii, the bodies are usually solitary but occasionally clump.

Haemanthus coccineus

2010-04-10T12:30:00.000-07:00

Haemanthus coccineus is widely distributed in mainly the winter rainfall areas of south western Namibia, western South Africa as well as the south coast, Little Karoo and Eastern Cape.

The bulbs which grow to about tennis ball size occur on rocky areas, sandy plains and slopes and mountains in a wide variety of habitats. The plants are winter growers and usually have one pair of leaves that vary in size and shape. The leaves often lie flat on the ground but in some areas can also grow fairly upright. Some bulb have exceptionally large leaves while others have not.

Haemanthus coccineus lose there leaves in late spring and the bulbs remain dormant during the dry summer months.

At the end of the dormant period the beautiful red flowers appear from late February to April. The two leaves start pushing out of the ground after flowering.

Immediately after flowering the red to whitish seeds start to develop. The seeds ripen quickly and are ready to sow as soon as they fall from the peduncle. Like in some other members of the family Amarylidaceae the seeds germinate unaided and can be sown on top of a sandy soil to which some compost has been added. It is advisable to cover the seeds with some sand and/or pebbles. This helps the roots to strike. Water regularly during the winter months. The bulbs grow relatively fast and flowering plants can be produced after three years.

Although the bulbs are very poisonous to humans, indigenous tribes have used the leaves as a dressing for septic wounds and preparations of the bulbs were also used as a diuretic and for the treatment of asthma.

Haemanthus coccineus is commonly known as Maart Blom (Afr.)( translate March flower), April Fool. Plantzafrica also mentiones the names: Blood flower, paintbrush lily, powderpuff lily, king-of-Candia, pincushion (Eng.); bergajuin, bloedblom, rooikwas, bobbejaansool, koning-van-Kandië, Maartblom, misryblom, misryersblom, skoensole, velskoenblaar (Afr.)

Adult seed grown plants of Haemanthus coccineus are available from Contact

Haemanthus coccineus flower.

Haemanthus coccineus flower close-up.

Haemanthus coccineus stems. The stems often have spots.

Haemanthus coccineus seed. The colour varies from whitish to red.

From our Haemanthus bookstore:

Ariocarpus retusus

2010-04-03T00:45:00.000-07:00

Ariocarpus retusus is native to Mexico (San Luis Potosi, Nuevo Leon).

The main body is covered with bluish-green tubercles and adult plants can reach a diameter of up to 25 cm. The white to pale pink flowers appear in summer and are open during the day (diurnal). The plants have a long tap root and watering should be done with care in summer and withheld in winter.

It is a variable species, especially concerning the shape of the tubercles as llustrated in the photographs below.

Ariocarpus retusus should be kept in a sunny position with a well drained rich porous soil.

The seed from Ariocarpus retusus germinates quite readily but growth like others in the genus is very slow.

Seedgrown mature Ariocarpus species are currently on auction at Ariocarpus and rare Cacti auction.

The following photographs are from the collection of Gerhard Marx. All the plants are grown from seed and are many years old.

Ariocarpus retusus in cultivation.

Ariocarpus retusus 'panarottoi'.

Ariocarpus retusus.

Ariocarpus retusus.

Ariocarpus retusus.

From our Ariocarpus bookstore:

Dioscorea hemicrypta

2010-03-06T11:49:00.000-08:00

Dioscorea hemicrypta is endemic to the Little Karoo and Eastern Cape where the plants occur in mountainous habitat. The caudiciform stem of the plant normally remains underground, but does protrude above ground with age or if some undergound obstacle prevents it from contracting deeper. Although Dioscorea hemicrypta can be cultivated in the open, the plants normally avoid the hot sunny northern slopes of hillsides. Similar to other members of the genus, the plant is a climber and grows entangled in other shrub for support of its branches.

In habitat the caudex is often damaged giving many plants a sickly appearance. Some plants however are beautifully shaped with impressive patterns on the stem.

The seeds are distributed by wind.

Dioscorea hemicrypta easily germinates from seed which should be sown after midsummer or in autumn. The tempo of germination is quite variable though and some seeds will only germinate during the next season. Seeds sown in spring seldom germinate as spring is the normal resting period for the plants and they lose their leaves during this time. Watering should then be done with care to prevent rot. The normal growing period starts in midsummer for some plants, while others start growing in late summer and autumn.

Dioscorea hemicrypta is very slow growing and it takes many years to cultivate a plant with a 15 cm diameter caudex. Large plants with caudexes of 50 cm or more are very old.

Dioscorea hemicrypta an old plant in habitat south of Oudtshoorn.

Dioscorea hemicrypta caudex.

Dioscorea hemicrypta has heart shaped leaves.

Dioscorea hemicrypta, upright seedpods with seed. The seeds can remain in the pods for a considerable time after the pods open.

A large plant north of Calitzdorp during the dormant season (early summer).

The plants look quite similar to the very popular Dioscorea elephantipes

Gasteria rawlinsonii

2010-02-22T12:16:00.000-08:00

Gasteria rawlinsonii is a most unusual Gasteria from the Baviaanskloof in the Eastern Cape. Unlike other Gasterias the stems of Gasteria rawlinsonii continue to elongate with age, giving rise to numerous distichous leaves along its length. The plants up to 1 meter in length, usually grow pendent over the steep rocks.

Gasteria rawlinsonii is presently known to occur over a distance of some 30 km, from Studis to Geelhoutboskloof. Because the habitat is so inaccessible the plants may well have a wider ditribution. The main flowering time is from July to November but flowering occurs at other times also.

Although Gasteria rawlinsonii is fairly easy to grow from seed, the plants are more difficult in cultivation then other Gasterias. Seedlings need to be treated regularly with fungiside.

Gasteria rawlinsonii (top middle) growing on steep cliff near Studis.

Gasteria rawlinsonii. The plants are almost impossible to photograph in habitat. A special thank you to Gerhard Marx for putting his life at risk for this image !

Pachypodium bispinosum

2010-02-15T02:11:00.000-08:00

Pachypodium bispinosum is mostly confined to the Eastern Cape where is occurs in rocky outcroppings amongst other succulent vegetation. The big tuberous stem is usually hidden underground, but in some indiviual plants protrudes above the soil.

When not in flower the plants are easily confused with the similar Pachypodium succulentum with which it sometimes shares habitat.

The pink-purple flowers of Pachypodium bispinosum appear from early spring to early summer.

Pachypodium bispinosum in habitat near Carlisle Bridge.

Euphorbia bupleurifolia

2010-02-12T22:07:00.000-08:00

Euphorbia bupleurifolia is well distributed in the Eastern Cape and Kwazulu-Natal.

It is a handsome plant with tubercles on the stem and a crown of leaves on top, giving the plant the general appearance of a miniature cycad.

The South African Euphorbias with prominent leaves are rather more difficult to cultivate then some other Euphorbias , and Euphorbia bupleurifolia is no exception. A healthy growing plant can suddenly rot and die almost overnight.

Euphorbia bupleurifolia receives summer rainfall, surviving mainly on thunderstorms. The plants germinate easily from seed but a well drained soil is essential for their survival.

The plants are dioecious meaning that male and female flowers appear on seperate plants. Sex changes have been known to occur however and a distinctly male plant can suddenly start producing female flowers.

Euphorbia bupleurifolia in habitat in the Eastern Cape.

Euphorbia valida

2010-02-01T12:57:00.000-08:00

Euphorbia valida is distributed in the Eastern Cape. The plants occur in the semi-desert regions of the Jansenville, Steytlerville, Somerset East and Albany districts. Rather large numbers are found on the Dikkop Flats south of Carlisle Bridge.

Euphorbia valida is similar to Euphorbia meloformis, but the plants usually grow larger and tend to elongate above the ground whereas E meloformis tends to sink into the ground.

Euphorbia valida in habitat on the Dikkop Flats.