Jepson Flora Project: Jepson Interchange    

link to manual TREATMENT FROM THE JEPSON MANUAL (1993) previous taxon | next taxon
Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California

  • Up-to-date information about California vascular plants is available from the Jepson eFlora.



James P. Smith, Jr., except as specified

Annual to bamboo-like; roots generally fibrous
Stem generally round, hollow; nodes swollen, solid
Leaves alternate, 2-ranked, generally linear; sheath generally open; ligule membranous or hairy, at blade base
Inflorescence various (of generally many spikelets)
Spikelet: glumes generally 2; florets (lemma, palea, flower) 1–many; lemma generally membranous, sometimes glume-like; palea generally ± transparent, ± enclosed by lemma
Flower generally bisexual, minute; stamens generally 3; stigmas generally 2, generally plumose
Fruit: achene-like grain
Genera in family: 650–900 genera; ± 10,000 species: worldwide; greatest economic importance of any family (wheat, rice, maize, millet, sorghum, sugar cane, forage crops, ornamental, weeds; thatching, weaving, building materials)
Reference: [Hitchcock 1951 Manual grasses US, USDA Misc Publ 200; Clayton & Renvoise 1986 Kew Bull Add Series 13]
See Glossary p. 26 for illustrations of general family characteristics. Generally wind-pollinated.



William J. Crins

Annual, perennial herb, cespitose or from stolons
Stem decumbent to erect, 1–8 dm; nodes visible, brown
Leaves: ligule 1–6 mm, membranous, truncate to acute, generally scabrous; blade flat, glabrous or scabrous
Inflorescence panicle-like, generally cylindric, dense; branches short
Spikelet ± compressed, breaking below glumes, falling as 1 unit; glumes ± equal, generally = spikelet, membranous, generally keeled, keel and lateral veins generally stiff- or appressed-hairy, margins free or fused near base, tip obtuse, acute, or short-awned, 3-veined; floret 1; lemma membranous, margins keeled, sometimes fused near base, truncate to acute, 3–5-veined, awned on back below middle, awn straight or abruptly bent generally at lemma tip; palea generally 0; anthers 0.5–4 mm
Fruit glabrous
Species in genus: ± 35 species: temp North America, Eurasia
Etymology: (Greek: fox tail)
Reference: [Rubtzoff 1961 Leafl West Bot 9:165–180]


A. myosuroides Huds.

Stem 4–4.5 dm
Leaf: ligule 4.5–6 mm; blade 8–11 cm, 3.5–6 mm wide
Inflorescence 7–10 cm, 4–7 mm wide
Spikelet: glumes 4.5–5.5 mm, glabrous except keel ciliate at base; lemma awn bent, exceeding lemma body by 3–4 mm; anthers ± 4 mm
Chromosomes: 2n=14,28
Ecology: Pastures
Elevation: < 100 m.
Bioregional distribution: San Joaquin Valley, South Coast
Distribution outside California: native to Eurasia
Cult for forage but not very successful in CA.

previous taxon | next taxon
bioregional map for ALOPECURUS%20myosuroides being generated

Retrieve Jepson Interchange Index to Plant Names entry for Alopecurus myosuroides
Retrieve dichotomous key for Alopecurus
Overlay Consortium of California Herbaria specimen data by county on this map
Show other taxa with the same California distribution | Read about bioregions | Get lists of plants in a bioregion
Return to the Jepson Interchange main page
Return to treatment index page

University & Jepson Herbaria Home Page |
General Information | University Herbarium | Jepson Herbarium |
Visiting the Herbaria | On-line Resources | Research |
Education | Related Sites
Copyright © by the Regents of the University of California