Jepson eFlora: Taxon page
Key to families | Table of families and genera
Previous taxon Index to 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 |
Next taxon
Hesperocnide tenella

Higher Taxonomy
Family: UrticaceaeView DescriptionDichotomous Key

Common Name: NETTLE FAMILY
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).
eFlora Treatment Author: Robert E. Preston & Dennis W. Woodland
Scientific Editor: Thomas J. Rosatti.
Genus: HesperocnideView Description 

Common Name: WESTERN NETTLE
Habit: 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.
Species In Genus: 2 species: California, Baja California, Hawaii. Etymology: (Greek: western nettle)

Hesperocnide tenella Torr.
NATIVE
Stem: < 5 dm. Leaf: 4--40 mm, ovate, thin, blunt-serrate; stipules small; petiole +- < blade, slender; crystals generally elongate, rounder in fully exposed pls. Inflorescence: < petiole, +- spheric. Flower: calyx 1--1.5 mm. Fruit: ovate.
Ecology: Moist, shaded areas, often at base of rocks or shrubs, in chaparral, coastal scrub, riparian woodland, mesic oak woodland; Elevation: < 1200 m. Bioregional Distribution: CW, SW (uncommon NCo, NCoRI, SNF); Distribution Outside California: northern Baja California. Flowering Time: Feb--Jun
eFlora Treatment Author: Robert E. Preston & Dennis W. Woodland
Jepson Online Interchange

Previous taxon: Hesperocnide
Next taxon: Parietaria

Name Search
botanical illustration including Hesperocnide tenella

Contact/Feedback

Citation for this treatment: Robert E. Preston & Dennis W. Woodland 2016. Hesperocnide tenella, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=28033, accessed on May 02, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on May 02, 2016.


Hesperocnide tenella
click for enlargement
© 2006 Steve Matson
Hesperocnide tenella
click for enlargement
© 2006 Steve Matson
Hesperocnide tenella
click for enlargement
© 2003 Michael Charters
Hesperocnide tenella
click for enlargement
© 2006 Steve Matson
Hesperocnide tenella
click for enlargement
© 2009 Keir Morse
Hesperocnide tenella
click for enlargement
© 2009 Keir Morse

More photos of Hesperocnide tenella in CalPhotos


Geographic subdivisions for Hesperocnide tenella:
CW, SW (uncommon NCo, NCoRI, SNF);
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
map of distribution 1
(Note: any qualifiers in the taxon distribution description, such as 'northern', 'southern', 'adjacent' etc., are not reflected in the map above, and in some cases indication of a taxon in a subdivision is based on a single collection or author-verified occurence).

View elevation by latitude chart
Data provided by the participants of the Consortium of California Herbaria.
View all CCH records

CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa.
Blue line denotes eFlora flowering time.