E. Retief & H.J.T. Venter,
C+E South Africa, Zimbabwe
Sandy - Clayish
Medium - Maximum
Purplish-Green / Yellowish-Green / Bright Magenta-Purple
This member of the
was given this name by Elizabeth Retief and Hendrik Johannes Tjaart Venter in
1983. It is found in central and eastern South Africa and Zimbabwe, growing in a
sandy or clayish soil with some water and some to lots of sun. The caudex can grow to
ten centimetres in diameter, the entire plant
to fifteen centimetres in height. The flowers are purplish-green on the outside
and bright magenta-purple with a yellowish-green edge inside.
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 for Dr. Robert A. Dyer, 1900-1987, a South African botanist,
working with succulents.
*)Accordantly to the latest taxonomic system; APG IV 2016, Asclepiadaceae is now part of the Apocynaceae.