Then five petal primordia arised simultaneously in a whorl arrangement, followed by eight stamen primodia arised and last by pistil primodium.
雄花具有发育不完全
；两性花雄虽然正常发育，但花丝不伸长且花药不开裂。
胎;
, 顶
;芽;;，背侧;
心，子;;Then five petal primordia arised simultaneously in a whorl arrangement, followed by eight stamen primodia arised and last by pistil primodium.
雄花具有发育不完全；两性花雄虽然正常发育，但花丝不伸长且花药不开裂。
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