Deciduous trees (in ours). Leaves opposite, 2-pinnate. Flowers purple (in ours) in terminal panicles. Calyx truncate or 5-toothed. Corolla tube curved, the limb ± 2-lipped with 5
rounded subequal lobes; disk thick and cushion-like. Ovary
2-locular. Stamens 4; staminode 1. Fruit a ± circular
capsule. Seeds winged. Derivation of name: after a native Brazilian name for a species of this genus Worldwide: 34 species from tropical America Zimbabwe: 1 taxon. |