dioecy; dioecism
Botanical term for plant species where male and female reproductive organs are on separate individual plants.
Ginkgo is a dioecious plant.
雌雄同株 (monoecy) refers to plants with both male and female flowers on the same individual, while 雌雄異株 describes separate male and female plants.
Compound of 雌雄 (male and female) + 異 (different) + 株 (stock, plant), literally 'male-female different plants'. The term is a direct calque from Western botanical terminology.