Stem anatomy . Secondary thickening absent. Reproductive type, pollination . Unisexual flowers absent . Inflorescence, floral, fruit and seed morphology .
Inflorescences usually cincinni .
Floral receptacle with neither androphore nor gynophore . Hypogynous disk absent. Calyx lobes markedly longer than the tube. Petals shortly clawed. Androecium exclusively of fertile stamens.