Xylem without vessels. Reproductive type, pollination . Inflorescence, floral, fruit and seed morphology . The terminal inflorescence unit cymose, or racemose. Free hypanthium absent.
Calyx lobes markedly longer than the tube.
Androecium exclusively of fertile stamens. Endothecium not developing fibrous thickenings. Anther epidermis persistent. The initial microspore tetrads isobilateral, or decussate. Pollen shed as single grains.