The terminal inflorescence unit cymose. Inflorescences terminal, or axillary. Floral receptacle developing a gynophore, or with neither androphore nor gynophore. Free hypanthium absent . Hypogynous disk often present, or absent.
Calyx lobes markedly shorter than the tube to markedly longer than the tube.
Androecium exclusively of fertile stamens, or including staminodes. Endothecium developing fibrous thickenings. Anther epidermis persistent. The initial microspore tetrads tetrahedral, or decussate. Carpels reduced in number relative to the perianth.