
Caustic bush - Cynanchum viminale subsp. australe
Trailer or climber with stems to 6 m long, or sometimes a compact much-branched shrub to 2 m high; stems green or grey-green, young parts minutely hairy. Leaves opposite, scale-like, internodes long. Umbels 2–10-flowered; pedicels 3–6 mm long. Flowers 6–8 mm diam., pale yellow or whitish.

''Cynanchum viminale'' is a leafless succulent plant in the family Apocynaceae. The species is native to West Africa, the Indian Ocean and Western Pacific region. The species' natural range extends from South Africa throughout much of Africa and the Middle East to India, Indochina, Southern China, Indomalaya and into Meganesia. The species is also found on several Indian Oceans islands including Mauritius, Réunion and the Seychelles.
In keeping with its wide distribution, the species.. more