|University of California, Berkeley|
|Directory News Site Map Home|
|Jepson eFlora: Taxon page
Key to families | Table of families and genera
Indexes to all accepted names and synonyms:
| A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
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.
50 genera, 700 species: worldwide; some cultivated (Boehmeria, ramie; Pilea, clearweed). [Boufford 1997 FNANM 3:400–413] —Scientific Editor: Thomas J. Rosatti.
Unabridged references: [Miller 1971 J Arnold Arbor 52:40–68]
Key to Urticaceae
Annual, erect, slender, stinging hairs present; monoecious. Leaf: opposite, toothed. Inflorescence: generally head-like, of both staminate, pistillate flowers. Staminate flower: sepals 4, ± free; stamens 4. Pistillate flower: sepals 2–4, ± equal, fused ± to tip. Fruit: lenticular, enclosed by ovate, sac-like, membranous calyx.
2 species: California, Baja California, Hawaii. (Greek: western nettle)
Unabridged references: [Woodland et al. 1976 Canad J Bot 54:374–383]
Stem: < 5 dm. Leaf: 4–40 mm, ovate, thin, blunt-serrate; stipules small; petiole ± < blade, slender; crystals generally elongate, rounder in fully exposed plants. Inflorescence: < petiole, ± spheric. Flower: calyx 1–1.5 mm. Fruit: ovate.
Moist, shaded areas, often at base of rocks or shrubs, in chaparral, coastal scrub, riparian woodland, mesic oak woodland; < 1200 m. Central Western California, Southwestern California (uncommon North Coast, Inner North Coast Ranges, Sierra Nevada Foothills); northern Baja California. Feb–Jun [Online Interchange]
Previous taxon: Hesperocnide
Next taxon: Parietaria
Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Apr 18 2014
Citation for this treatment: [Author of taxon treatment] 2012. Hesperocnide, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=28033, accessed on Apr 18 2014
Copyright © 2013 Regents of the University of California
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.
|Bioregions in which Hesperocnide tenella occurs|| Markers link to CCH specimen records. If the markers are obscured, reload the page [or change window size and reload]. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.
READ ABOUT YELLOW FLAGS
|View elevation by latitude chart|| Data provided by the participants of the Consortium of California Herbaria.
View all CCH records
CCH collections by month