Inflorescence, floral, fruit and seed morphology . The terminal inflorescence unit apparently cymose. Floral receptacle with neither androphore nor gynophore . Free hypanthium absent . Calyx lobes markedly shorter than the tube to markedly longer than the tube.
Corolla lobes markedly shorter than the tube to markedly longer than the tube.
The initial microspore tetrads tetrahedral, or isobilateral, or decussate. Carpels reduced in number relative to the perianth. Polar nuclei fusing prior to fertilization. Endosperm formation cellular, or nuclear, or helobial. Seeds not conspicuously hairy .