Usually monoecious trees. Leaves deciduous, alternate, serrate, palmately veined and lobed, with stipules. Flowers unisexual without petals, in spherical heads. Male flowers in erect terminal racemes of several heads; stamens many. Female flowers amalgamated into a single dense head borne on a pendent peduncle; ovary 2-celled with a persistent style. Mature fruiting head hard and woody. Seeds winged.
Worldwide: One genus, which occurs in Asia, the Eastern Mediterranean, and from the eastern U.S.A. to Central America. Zimbabwe: 1 cultivated genus and 2 cultivated taxa. |
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