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南瓜花生于叶腋间,单生,雌雄异花同株。雄花在瓜蔓上出现较早,连续着生;雌花出现稍迟,间隔数节出现在雄花的节位之中。在正常的情况下,雄花为空花,雌花授粉受精后结瓜。曾有人报导,南瓜的雄花也能结瓜,据观察,可以结瓜的除雌花外,都是雄花节位上着生的二性花;二性花由雄花性变而来。按其性变程度的不同可分为以下三种类型。
Pumpkin peanut leaf axillary, solitary, dioecious. Male flowers appear earlier in the melon, continuous with students; female flowers appear later, the interval between the number of sections appear in the male flower node. Under normal circumstances, male flower is empty flower, female flower pollination after fertilization. It has been reported that male flowers can pumpkin pumpkin, it is observed, can cure the addition to the female flower, male flowers are born on the seat of the two sex flowers; According to the degree of sexual change can be divided into the following three types.