The male phase came first, in which the stamen matured. Then came the female phase, in which the pistil matured.
每个头状花序的所有小花同步开放,雄蕊先成熟,表现为雄性时期;雄蕊脱落后,雌蕊成熟,表现为雌性时期。
参考来源 - 喜树生殖生物学的研究·2,447,543篇论文数据,部分数据来源于NoteExpress
N-COUNT The stamens of a flower are the small, delicate stalks which grow at the flower's centre and produce pollen. 雄蕊 [技术]
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