复伞房花序
- 网络compound corymb;indefiniteinflorescence
复伞房花序-
本属的进化趋势为冬芽芽鳞由数枚减少到2枚，花序由总状圆锥花序→复伞房花序→伞房花序→伞形花序。
This genus ' evolutionary direction : the number of winter bud scale is from many to two , inflorescence : compound raceme → compound corymb → corymb → umbel .
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复伞房花序，花序梗、花柄都有长柔毛；
After an umbrella room , stems , flower inflorescence inflorescence handle all have pilose ;