雄蕊10,二体,花药同型,子房具柄,有胚珠多颗,花柱内弯;
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花瓣3-5,短,凹,在芽中覆瓦状或梅花形,离生或很少基部与雄蕊管合生和贴生。
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雄蕊管达4厘米,稍外露,基部贴生于花冠筒,顶缘具线状撕裂状牙齿;
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staminal tube cylindric, base adnate with corolla tube, apex distinct, margin 10-lobed;
雄蕊管圆筒状,基部与花冠筒贴生,先端离生,边缘10裂;
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雄蕊管圆筒状,稍短于花瓣,顶端边缘全缘或具10圆齿,每裂片各具1花药;
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staminal tube ca. 1. 8 mm, rather thick, apical margin inconspicuously toothed;
雄蕊管长约1.8毫米,相当厚,顶端边缘不明显齿状;
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staminal tube glabrous on both surfaces, apical margin entire or shortly crenate;
雄蕊管两面无毛,顶端边缘全缘或具短圆齿;
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staminal tube cylindric, ca. 7 mm, both surfaces white villous, apical margin crenate;
雄蕊管圆筒状,长约7毫米,两面具白色长柔毛,顶缘具圆齿;
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能育雄蕊2,内藏,着生花冠基部,具退化雄蕊,花丝弯曲,花药分离;
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