雄蕊露出或几乎不露出，花药紫黑色，花丝下部密被白色短柔毛，花柱伸出，长过雄蕊，基部密被柔毛。
Stamen is shown or show scarcely, antheral violet black, filament bottom is close by white short fluff, style is extended, had grown stamen, base the ministry is close by fluff.
具有长花柱型花和短花柱型花两种类型。
The two types of flowers are long style flowers and short style flowers.
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