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来自维基百科,自由的百科全书
距是某些植物的花被(如风兰属的距,堇菜属的瓣距,凤仙花属的萼距[1],翠雀属的萼距和瓣距[2])或被丝托(如旱金莲属的距[3])上形成的管状或囊状突起。[4]大多数距内部有蜜腺,称为蜜距。亦有无蜜腺的距,如翠雀属植物的萼距。[2]
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