Reproductive type, pollination . Inflorescence, floral, fruit and seed morphology . The terminal inflorescence unit racemose. Free hypanthium absent. Hypogynous disk absent .
Calyx lobes markedly longer than the tube.
Androecium 5, or 6. Androecium exclusively of fertile stamens. Pollen shed as single grains. Gynoecium 2 carpelled. Carpels reduced in number relative to the perianth.