The attractive trumpet shaped flowers are deep purple. A red stemmed species, original plant from New Zealand, but native to Tropical America. This species has a tuberous rootstock. A South African plant from the arid desert areas. Producing a carrot-like rootstock.
Flowers greenish white.
A South African species producing a tuberous rootstock with vine. New to cultivation. A Madagascan pachycaul, with feathery pinnate leaves. Reported from a location N. of La Table.