Lamina margins entire. Stem anatomy . Reproductive type, pollination . Inflorescence, floral, fruit and seed morphology . Free hypanthium absent.
Corolla lobes markedly longer than the tube.
Androecium exclusively of fertile stamens. Gynoecium 2 carpelled. Carpels reduced in number relative to the perianth. The pistil 1 celled. Ovary 1 locular .