Stem anatomy . Reproductive type, pollination . Inflorescence, floral, fruit and seed morphology . Inflorescences scapiflorous, or not scapiflorous. Free hypanthium absent.
Calyx lobes markedly longer than the tube.
Androecium 8, or 10. Androecium exclusively of fertile stamens. The anther appendages ostensibly apical. Anther wall initially with one middle layer. Carpels isomerous with the perianth.