Inflorescences often unisexual , containing either male or female flowers .
花序通常单性,包含的或者雄花或者雌花。
Any of several deciduous trees of the genus morus , having unisexual flowers in drooping catkins and edible multiple fruit .
落叶树木,长有低垂的柔穗状花序中的单性花朵和可食的聚花果实。
Any of various deciduous trees or shrubs of the genus salix , having usually narrow leaves , unisexual flowers borne in catkins , and strong lightweight wood .
柳树柳属的落叶树或灌木,叶子通常狭长,柔荑花序内有雌雄同蕊的花,其木质结实且轻。
Any of various weeds of the genus ambrosia having small , greenish , unisexual flower heads and producing abundant pollen that is one of the chief causes of hay fever .
豚草一种豚草属的杂草,有绿色、雌雄合一的小花冠,能产大量花粉,是引起干草热的主要原因之一。
Any of various aquatic or wetland perennial plants of the genus sagittaria , having arrowhead-shaped leaves and panicles of white , unisexual flowers .
慈菇一种慈菇属水生或沼泽地生长的多年生植物,有箭头状叶子和白色的雌雄异花的圆锥花序。
Any of numerous plants of the genus urtica , having toothed leaves , unisexual apetalous flowers , and stinging hairs that cause skin irritation on contact .
齿形叶,花雌雄异体,无花瓣,接触其植物刺毛会引起皮肤过敏。
Any of several submerged plants of the genus ceratophyllum , forming branched masses in quiet water and having finely dissected , whorled leaves and minute unisexual flowers .
角苔一种金鱼藻属的水下植物,在风平浪静时会形成纵横交错的树枝网,生有轮生的多裂叶,开极小的单性花。
Inflorescences axillary , pedunculate , densely globose clusters of unisexual flowers ( plants often dioecious ) ; glomerules solitary or in dichotomous cymes .
花序腋生,有花序梗,浓密球状单性花簇生(植株通常雌雄异株);团伞花序单生或在二歧聚伞花序里的。
Any of various deciduous trees or shrubs of the genus betula , native to the northern hemisphere and having unisexual flowers in catkins , alternate , simple , toothed leaves , and bark that often peels in thin .