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东北红豆杉雌雄异株．雌、雄花芽多着生于树冠外部１年生枝条叶腋处。在一定范围内较高的温、湿度有利于花芽的分化。在花粉形成过程中．尤其是减数分裂期遇到低温或持续低温．会导致大量花粉败育：而低温可以延长成熟后的风干花粉寿命。东北红豆杉结实量少．但不同年份间结实量的重复力却较高．单株间结实量重复力较小．说明年份间结实较稳定．而个体间结实量变异较大。
Northeast yew dioecious. Female, male flower buds were born in the crown 1 year old branch leaf axils. In a certain range of high temperature and humidity is conducive to the differentiation of flower buds. During pollen formation. Especially in meiosis encountered low or sustained low temperature. Can lead to a large number of pollen abortion: and low temperature can extend the life of mature dried pollen. Northeast yew strong fruitless. However, the repeatability of the amount of firmness in different years is higher. Single plant between the amount of reproductive capacity smaller. Explain the strong and stable between the years. However, the variation of the sturdy quantity among individuals is larger.