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| Jepson eFlora: Taxon page
Key to families | Table of families and genera |
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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 | |
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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]
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: CA, Baja CA, HI. (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);
Previous taxon: Hesperocnide
Next taxon: Parietaria
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].
Copyright © 2012 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 taxon occurs | Red area (if present) is the part of the bioregion lying between the upper and lower elevation limits of the taxon; 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 have georeferencing or identification issues. |
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Chart based on elevation range in Manual and elevations and coordinates of CCH records. Data provided by the participants of the Consortium of California Herbaria. Note: About half of the CCH records include both elevation and coordinates. | Map made in collaboration with Scott Loarie. Data provided by the participants of the Consortium of California Herbaria.
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