伞状花序的

A cymose inflorescence with more than two branches from the main axis.

多歧伞 Pleiochasium 从主轴分出两个以上分伞状。

Inflorescence cymose, ebracteate, many flowered.

伞状，无苞片，多。

Basal leaves decussate; middle stem leaves opposite; distal stem leaves alternate; Inflorescence paniculiform with cymose branches.

基交互对；中间茎对；上部茎互；圆锥状具伞状分枝。