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Urticaceae Habit: Annual, perennial herb [to shrub, soft-wooded tree], hairs stinging and not [glabrous]; monoecious or dioecious; wind-pollinated. Leaf: alternate or opposite, generally stipuled, petioled, blade often with translucent, raised dots due to crystals in epidermal cells. Inflorescence: axillary, 1-flowered or head-, raceme-, or panicle-like. Flower: generally unisexual, small, +- green; sepals generally 4--5, free to fused; petals 0. Staminate Flower: stamens generally 4--5, opposite sepals, incurved in bud, reflexing suddenly when flower opens. Pistillate Flower: ovary 1, superior, chamber 1, style 0--1, stigma 1, generally hair-tufted. Fruit: generally achene. Genera In Family: 50 genera, 700 species: worldwide; some cultivated (Boehmeria, ramie; Pilea, clearweed). Jepson eFlora Author: Robert E. Preston & Dennis W. Woodland Reference: Boufford 1997 FNANM 3:400--413 Unabridged Reference: Miller 1971 J Arnold Arbor 52:40--68 Scientific Editor: Thomas J. Rosatti. Index of California Plant Names (ICPN; linked via the Jepson Online Interchange) Key to Urticaceae Previous taxon: Ulmus pumila Next taxon: Boehmeria |