Glabrous perennial herbs (in
ours), with annual stems arising from a perennial often tuberous
base. Stipules 0. Leaves alternate or rarely sub-opposite
or in a rosette. Flowers in terminal or axillary cymes, racemes or
panicles or solitary. Sepals 2, opposite. Petals 5 (in ours).
Stamens 5-many. Ovary superior, 1-locular; style filiform with 3
stigma lobes. Capsule dehiscing longitudinally by 3
valves. Worldwide: 39-40 species in southern Africa, C and S America Caprivi: 3 taxa. The larvae of the following species of insect eat species of this genus: |
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