The terminal inflorescence unit cymose. The involucres of Phyllangium accrescent. Floral receptacle with neither androphore nor gynophore. Free hypanthium absent . Hypogynous disk absent .
Corolla lobes markedly shorter than the tube, or about the same length as the tube.
Androecium exclusively of fertile stamens, or including staminodes. Gynoecium 2 carpelled. Carpels reduced in number relative to the perianth. The pistil 2 celled . Ovary 2 locular .