Euphorbia gamkensis

Mature plants of this species usually have a globose caudex to 10 cm tall and to 9 cm in diameter. The branches are about a cm thick and normally about 1.8 cm long.

The species is very rare and only occurs between Calitzdorp and Oudtshoorn in the Little Karoo. It was described in 1999, but nowadays the consensus seems to be that it should be incorporated in E. decepta.

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Aloidendron dichotomum (part 2 of 2)

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Aloidendron dichotomum (part 1 of 2)

Based on genetic research, in 2013 Ronell Klopper and Gideon Smith created the  genus Aloidendron to accommodate 6 species of tree aloes, including Aloe dichotoma.
The plants form trees with a rounded crown,  with stems to 1 m in diameter at the base and usually 3-4 m tall (sometimes up to 9 m).
The bark on the trunk peels lengthwise, forming large scales with hard and razor-sharp edges. The leaves are about 30 cm long and 5 cm wide at their base.
In winter (May-August),  the flowers appear; they are pollinated by starlings, sunbirds, weaver birds and white-eyes.

From the Brandberg Massif in Namibia to Upington,  Kenhardt and the Nieuwoudtville area in South Africa, the species forms a conspicuous component 0f the landscape. The plants occur in open sites, usually in rocky terrain but also in flats.
Depending on the area, rainfall (between 50 and 300 mm per year) may occur in either summer or winter.

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Drosanthemum curtophyllum

It is often rather difficult to identify Drosanthemum species, but in this case the name is a useful pointer (curtophyllum = with shortened leaves).
The plants are shrublets 10-30 cm tall, with branches that are mostly erect, rooting when growing in sand.
The leaves are not just short, but also comparatively fat: 3-5 mm long and 2-4 mm wide.
In September-October the flowers appear; they have white, pale pink or bicoloured petals up to 7 mm long.
The plants occur from the coastal belt in the Namibian Sperrgebiet to Nuwerus in Namaqualand, mostly in sand or gravel, but also in granite.

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Cephalophyllum tetrastichum

Described in 1989, this is still a species that is little known about.
It is only found in sand between rocks in the salt spray zone  of South Africa’s northwest coast (near Port Nolloth).
The leaves are trigonous*, placed in four rows (=tetrastichum) and often with a black cover, probably caused by a fungus.
As the flowering time is not mentioned in the literature, it may be of interest to know that the photos below were made in late August and early September.

trigonous = three-angled in cross-section

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Drosanthemum subplanum

This low-growing shrublet has creeping, rarely rooting branches and leaves 8-14 mm long and about 3 mm wide and thick, with small, rough papillae.
In September the plants are covered with pink flowers on conspicuously hairy stalks; the petals are to 13 mm long.
The species occurs in the Calvinia-Clanwilliam area.

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Crassula alpestris ssp. massonii

Four of the six species belonging to the section Columnares of Crassula are more or less well known (barklyi, congesta, pyramidalis and -of course- columnaris).
One other (C. multiceps) I have never even seen and the subject of this post is not widely known either.

It is a small, more or less erect plant, 8-25 cm tall when in flower, sometimes with several short branches at the base. The green to brown leaves are normally all about the same length (usually  5-8 mm but sometimes to 1.5 cm). They often covered with sand particles.
In September-November, the main stem bears many small rounded inflorescences on the upper part of the flower stalk.

The plants occur from Vanrhynsdorp to Calvinia, Worcester and Montagu on sandy or gravelly slopes (often facing south).

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