Floral nectaries present. Inflorescence, floral, fruit and seed morphology . The terminal inflorescence unit racemose. Inflorescences terminal, or axillary. Free hypanthium absent .
Corolla lobes markedly longer than the tube.
Androecium exclusively of fertile stamens. Endothecium developing fibrous thickenings. Anther epidermis persistent. The initial microspore tetrads tetrahedral. Pollen shed as single grains.