Leaves exstipulate . Lamina margins entire. Stem anatomy . Secondary thickening developing from a conventional cambial ring. Reproductive type, pollination .
Fertile flowers hermaphrodite .
Inflorescence, floral, fruit and seed morphology . The terminal inflorescence unit cymose. Free hypanthium absent. Corolla lobes about the same length as the tube, or markedly longer than the tube. Androecium exclusively of fertile stamens.