Inflorescence, floral, fruit and seed morphology . The terminal inflorescence unit 'essentially' racemose. The floral irregularity involving the androecium, or involving the perianth and involving the androecium. Free hypanthium absent. Hypogynous disk absent .
Calyx lobes markedly shorter than the tube to markedly longer than 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.