Inflorescence terminal or rarely axillary , a thyrse or panicle , very rarely flowers solitary .

花序顶生或很少腋生的，聚伞圆锥花序或圆锥花序的，极少花单生。

Flowers usually unisexual ( when plants dioecious , rarely monoecious ) , sometimes bisexual , solitary , clustered , or in cymules , these in a spike , raceme , or thyrse , these sometimes grouped into panicles .

花通常单性(当雌雄异株，很少雌雄同株)，有时两性，单生，丛生，或者组成小聚伞花序，穗状花序，总状花序，聚伞圆锥花序，有时形成圆锥花序。