Secondary thickening developing from a conventional cambial ring. Reproductive type, pollination . Inflorescence, floral, fruit and seed morphology . The terminal inflorescence unit cymose. Free hypanthium absent.
Calyx lobes markedly longer than the tube.
Corolla tube not noticeably adaxially split. Corolla lobes markedly longer than the tube. Androecium exclusively of fertile stamens. Gynoecium 2 carpelled. The pistil 1 celled.