This member of the
Asclepiadaceae* family was described by Nicholas
Edward Brown in 1907. It is found in Angola and Zimbabwe,
growing in a well drained soil with some water and some to lots of
sun. The caudex might grow to 30 centimetres or more, the vines to
one or two meters.
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 Joseph Burke, 1812-1873, an
English plant collector.
*)Accordantly to the latest taxonomic system; APG IV 2016, Asclepiadaceae is now part of the Apocynaceae.