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
For up-to-date information about California vascular plants, visit the Jepson eFlora.

POACEAE

GRASS FAMILY

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.

LAGURUS

HARE'S TAIL


Species in genus: 1 sp
Etymology: (Greek: hare tail, from densely hairy inflorescence)

Introduced

L. ovatus L.

Annual, generally soft-hairy
Stems ascending to erect, 1–6 dm
Leaves basal and cauline; sheath loosely surrounding stem; ligule membranous, truncate; blade 2–10 cm, 3–10 mm wide, flat, spreading to curving away
Inflorescence spike-like, 1.5–3 cm, ovoid to ± subcylindric, dense; spikelets generally subsessile
Spikelet 7–10 mm (except awns), compressed; glumes equal, > floret, narrowly lanceolate, soft-hairy to plumose, long-tapered; axis breaking apart above glumes, prolonged beyond floret; floret 1; lemma back glabrous, base puberulent, faintly 5-veined, awns 3, 2 from tip < 2 mm, slender, 1 from lemma back 8–20 mm, ± stiff, bent
Chromosomes: 2n=14
Ecology: Disturbed places
Elevation: < 200 m.
Bioregional distribution: s North Coast, Central Coast, San Francisco Bay Area
Distribution outside California: ne US; native to s Europe
Cult for ornamental.

previous taxon | next taxon
bioregional map for LAGURUS%20ovatus being generated
 
YOU CAN HELP US make sure that our distributional information is correct and current. If you know that a plant occurs in a wild, reproducing state in a Jepson bioregion NOT highlighted on the map, please contact us with that information. Please realize that we cannot incorporate range extensions without access to a voucher specimen, which should (ultimately) be deposited in an herbarium. You can send the pressed, dried collection (with complete locality information indicated) to us (e-mail us for details) or refer us to an accessioned herbarium specimen. Non-occurrence of a plant in an indicated area is difficult to document, but we will especially value your input on those types of possible errors (see automatic conversion of distribution data to maps).

Retrieve Jepson Interchange Index to Plant Names entry for Lagurus ovatus
Retrieve dichotomous key for Lagurus
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
Glossary
    FEEDBACK
  • This page is no longer being maintained.


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