Jepson eFlora
Key to families | Table of families and genera

Key to Urticaceae

View taxon page for Urticaceae

1. Stinging hairs present; leaves opposite

2. Pistillate sepals 2–4, fused ± to tip, ± equal ..... HESPEROCNIDE

2' Pistillate sepals 4, ± free, outer 2 < inner 2 ..... URTICA

1' Stinging hairs 0; leaves alternate or opposite

3. Leaves opposite (alternate), toothed; inflorescence spike-like ..... BOEHMERIA

3' Leaves alternate, entire; inflorescence 1-flowered or head-, spike-, or panicle-like

4. Stems decumbent to erect; leaf 10–90 mm; inflorescence head-, spike-, or panicle-like, generally few-flowered ..... PARIETARIA

4' Stems prostrate; leaf 3–8 mm; inflorescence 1-flowered ..... SOLEIROLIA

Contact/Feedback

Citation for the whole project: Jepson Flora Project (eds.) [year] Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html [accessed on month, day, year]
Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on [month, day, year].
We encourage links to these pages, but the content may not be downloaded for reposting, repackaging, redistributing, or sale in any form, without written permission from The Jepson Herbarium.