Inflorescence, floral, fruit and seed morphology . Flowers solitary, or aggregated in 'inflorescences'. The terminal inflorescence unit apparently cymose. 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. Gynoecium 2 carpelled. Carpels reduced in number relative to the perianth. Polar nuclei fusing prior to fertilization. Endosperm formation cellular, or nuclear, or helobial.