Anthers broadly oblong, 2-loculed, longitudinally dehiscent; cymes cymose, rarely nearly umbel-like, (1-)4- to many flowered.

• 花药宽长圆形，2室，纵向开裂；聚伞状的聚伞花序，很少象差不多伞形花序一样，(1-)4-对多花的。(2