Primary vascular tissue in a cylinder, without separate bundles, or comprising a ring of bundles, or in two or more rings of bundles to in scattered bundles. Vessel end-walls simple. Reproductive type, pollination . Inflorescence, floral, fruit and seed morphology . Free hypanthium absent.
Petals deeply bifid to bilobed, or entire.
Androecium exclusively of fertile stamens, or including staminodes. Endothecium developing fibrous thickenings. The initial microspore tetrads tetrahedral. Anther wall initially with one middle layer. Gynoecium supposedly 5.