Then five petal primordia arised simultaneously in a whorl arrangement, followed by eight stamen primodia arised and last by pistil primodium.
雄具有发育不完全之雌蕊;两性
之雄蕊虽然正常发育,
不
长
不开裂。
Then five petal primordia arised simultaneously in a whorl arrangement, followed by eight stamen primodia arised and last by pistil primodium.
雄具有发育不完全之雌蕊;两性
之雄蕊虽然正常发育,
不
长
不开裂。
Leaves basal and cauline, alternate, rarely opposite or whorled, simple or variously compound, palmately nerved, rarely penninerved, with or without stipules.
叶基生和茎生,互生,很少对生或者轮生,单叶或者复叶,掌状叶脉,很少羽状脉,有或无托叶。
Any of several New World aquatic herbs of the genus Cabomba, having entire, alternate floating leaves and finely divided, opposite or whorled submersed leaves.
常见水生草木植物(莼菜莼菜属),长有漂浮的椭圆形或卵形叶片和紫色的
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