银杏雌雄异株,雄株的花粉多、小、轻,能随风飘扬,使数公里外的雌株授粉,但授粉率极低。若用人工授粉,则可大大提高结实率。银杏的花着生在乳头状短枝上,常年一般于4月上旬花叶同放。雌株的花没有花被、雄蕊、子房,只有2～3枚长约1.2～1.5厘米的珠柄,珠柄顶端并列两颗如小萝卜籽大小、状如大樱桃的胚珠。雄株的花仅有2～3枚形似桑椹的雄蕊,雄蕊由许多花粉囊组成,每个花粉囊有两片囊瓣,如肥皂盒样扣在 Ginkgo dioecious, male pollen more, small, light, can wind fluttering, pollination of female plants several kilometers away, but the pollination rate is very low. If artificial pollination, can greatly improve the seed setting rate. Ginkgo flowers born in the papillary spur, perennial generally early April with the mosaic. Female flowers without perianth, stamens, ovary, only 2 to 3, about 1.2 to 1.5 cm long pearl handle, pearl handle the top of two small radish seed size, shaped like a large cherry ovule. The male flowers have only 2 or 3 stamens resembling mulberry, and the stamens consist of many pollen sacs, each with two sacs, such as a soap-like buckle