|University of California, Berkeley|
|Jepson eFlora: Taxon page
Key to families | Table of families and genera
Index to accepted names and synonyms:
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|Family: Urticaceae||View Description||Dichotomous Key|
|Genus:||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Habit: Annual, perennial herb [to shrub], weak, stinging hairs 0 or few to many; monoecious or dioecious. Stem: branched or not, erect, spreading, or decumbent. Leaf: opposite, lanceolate to cordate, toothed, prominently 3--5-veined from base; crystals round to elongate. Inflorescence: head-, raceme-, or panicle-like. Staminate Flower: sepals 4, +- free, green, sharp-bristly; stamens 4. Pistillate Flower: sepals 4, +- free, outer 2 < inner 2. Fruit: lenticular to deltate, enclosed by 2 inner sepals.
Species In Genus: +- 45 species: especially temperate. Etymology: (Latin: to burn, from stinging hairs)
eFlora Treatment Author: Robert E. Preston & Dennis W. Woodland
Jepson Online Interchange
Key to UrticaPrevious taxon: Soleirolia soleirolii
Next taxon: Urtica dioica
Citation for this treatment: Robert E. Preston & Dennis W. Woodland 2016. Urtica, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=9947, accessed on May 26, 2016.
Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on May 26, 2016.