Inflorescence, floral, fruit and seed morphology . The terminal inflorescence unit cymose. Inflorescences usually racemes, panicles or heads. The floral irregularity involving the perianth, or involving the perianth and involving the androecium. Free hypanthium absent .
Calyx lobes markedly longer than the tube.
Petals clawed, or sessile. Androecium exclusively of fertile stamens. Endothecium developing fibrous thickenings. Anther epidermis persistent. The initial microspore tetrads tetrahedral, or isobilateral, or decussate.