Flowers axillary, lateral or terminal, usually borne in a cincinnus, rarely in a raceme or solitary, bisexual, actinomorphic, 4- or 5-merous.

• 花腋生，横向的或顶生，通常着生在一蝎尾状聚伞花序，很少在一总状花序或单生，两性，辐射对称，瓣4或5。