Stem anatomy . Young stems cylindrical. Internal phloem present . Included' phloem present. Reproductive type, pollination .
Fertile flowers hermaphrodite .
Inflorescence, floral, fruit and seed morphology . The terminal inflorescence unit cymose. Free hypanthium absent. Hypogynous disk absent . Calyx lobes when gamosepalous, markedly shorter than the tube to about the same length as the tube.