Trees. Stipules present, caducous; stipels 0. Leaves imparipinnate; leaflets alternate to subopposite. Flowers in racemes or panicles; bracts and bracteoles generally small and caducous. Calyx slightly 5-lobed,
upper 2 lobes ± connate. Corolla yellow to orange. Fruit flattened, indehiscent with a variously thickened, ± central, seed-bearing part and a surrounding wing. Seeds 1(-3) Derivation of name: from the Greek: pteron (wing) and carpos (fruit). Worldwide: c. 25 species in the tropics Botswana: 6 taxa. The larvae of the following species of insect eat species of this genus: |