Valentino Vallicelli, Llifle.eu.
This member of the
Asclepiadaceae* family was given this name by William Henry
Harvey in 1842. It is found
in eastern South Africa, growing in a well drained but rich soil with
some water and some sun. The caudex can grow up to 20
centimetres in diameter, the entire plant to 30 centimetres in
flowers are yellowish green and purple.
The genera name from Greek
rhaphis; 'beet-root' and akme; 'sharpness' possibly
referring to the taste of the roots - haven't tried yet. The species
name after Karl Ludwig Philipp Zeyher, 19th century German botanist
and plant collector.
*)Accordantly to the latest taxonomic system; APG IV 2016, Asclepiadaceae is now part of the Apocynaceae.