|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: Fabaceae (Leguminosae)||View Description||Dichotomous Key|
|Genus: Trifolium||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Trifolium hirtum All.
Habit: Annual, hairy. Stem: ascending or erect. Leaf: cauline; stipules bristle-tipped; leaflets 1--2.5 cm, obovate. Inflorescence: head, +- 1.5--2 cm wide, many-flowered; sessile above 1--2 +- reduced leaves with involucre-like stipules; bristly in fruit. Flower: calyx 7--9 mm, lobes 4--6 mm, >> tube, subequal, bristle-like, densely plumose; corolla 11--15 mm, generally pink. Seed: 1. Chromosomes: 2n=10.
Ecology: Disturbed areas, roadsides; Elevation: < 2060 m. Bioregional Distribution: CA-FP; Distribution Outside California: sporadic to eastern United States; native to Eurasia, northern Africa. Flowering Time: Apr--May
eFlora Treatment Author: Michael A. Vincent & Duane Isely
Jepson Online Interchange
Weed listed by Cal-IPC
Previous taxon: Trifolium gymnocarpon subsp. plummerae
Next taxon: Trifolium howellii
Citation for this treatment: Michael A. Vincent & Duane Isely 2016. Trifolium hirtum, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=47096, accessed on May 27, 2016.
Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on May 27, 2016.