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a family of dicotyledonous plants, related to the family Moraceae. They are erect or climbing herbs, found predominantly in temperate regions. The plants are monoecious or dioecious and have small, plain flowers in inflorescences. The male inflorescences have many flowers and are paniculate; the female inflorescences have few flowers and are capitate or cone-shaped. The family comprises two genera, Cannabis and Humulus, with three or four species.