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dioecious

Botanical term (dioecious) for unisexual plants that bear either only male or only female sexual organs; "on two different houses" (plants), so to speak. The term "secondarily unisexual" means that the species is originally bisexual by its dispositions, but one sex is suppressed. For fertilisation, it is necessary for the male seeds (pollen) to reach the female flowers. This happens in different ways, for example by wind or bees. As a rule, wild vines are dioecious; the cultivated vine, however, is monoecious and has bisexual hermaphrodite flowers. See also under flower and vine systematics.

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