The colour of the open corolla varying from ivory, to sand coloured, centrifugally increasingly patterned with brown-red dots or transverse lines.
Family: Asclepiadaceae (Apocynaceae) (Milkweeds family)
Accepted Scientific Name: Piaranthus geminatus var. foetidus (N.E.Brown) Meve
Origin: Eastern and Western Cape Provinces
Etymology: "foetidus", stinking, evil-smelling; for the foetid odour of crushed plant parts
Description: Clumping and prostrate species that spread over the ground forming large cushions. This quite variable species shows a wide ecological amplitude and is the most common representative of Piaranthus.
Taxonomy remarks : The genus Piaranthus is a very confusing complex of extremely nearly related species with many intermediary forms growing together in many widespread localities and they are very difficult to distinguish. Also experienced botanist found difficulty to separate and classify reliably the various species and forms.
Cultivation: Winter growing succulent similar to Duvalias, these small stapeliads are relatively easy to grow. They require moderately watering through the growing season but enjoy plenty of water and some fertiliser in hot weather, this helps them to flower freely. Water more sparingly in winter according to temperatures. But, as with most asclepiads, it is unwise to leave them wet in cold weather. Winter care presents no problems at 5°C with plenty of light. Since roots are quite shallow, use a cactus mix or add extra perlite or pumice to regular soil potting soil. A gritty, very free-draining compost is suitable, and clay pots help the plants to dry out between watering.
Propagation: Easiest with stem cuttings. Allow cuttings to dry a day before planting. Stems must be laid (Not buried) on gritty compost and will then root from the underside of the stems. It can also be increased from seeds sowing in spring in moist, sandy peat moss.
Pollination: This plat are pollinated by flies (myiophilous pollination). Fly are attracted by olfactory stimuli, imitating dung or decaying organic (zoogenic or phytogenic) matter, together with mimetic colouration and, sometimes mimetic sculpturing. Nectar is present. The nectar mainly serves as optical attractant causing brilliance effects, and as visitor guide. However, nectar obviously is also a reward. In the pollination process flies carry pollinaria only at the distal parts of their proboscis, never on their legs. The pollinator spectra are similiar between of flowers in habitat and cultivated ones.