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.



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.



Stems prostrate, ascending, or erect
Leaf: ligule hairy; blade generally short, linear to narrowly lanceolate
Inflorescence panicle-like, dense, cylindric and exserted or head-like and enclosed by enlarged sheaths
Spikelet bisexual, strongly compressed, falling as 1 unit; glumes, lemma acute or short-pointed; glumes < or = floret, generally lanceolate, keeled, strongly 1-veined; floret 1; lemma membranous, 1-veined; palea generally 2-veined, generally splitting with age; stamens generally 3
Species in genus: 8 species: Medit Eur, Asia, c Africa
Etymology: (Greek: concealment, from partly hidden inflorescence)
Reference: [Hammel & Reeder 1979 Syst Bot 4:267–280]


C. vaginiflora (Forssk.) Opiz

Plant generally green, generally mat-like
Stems prostrate, < 30 cm; branches many
Leaf: sheath hairy; blade 1–5 cm, ± rigid, breaking easily from sheaths
Inflorescence 3–15 mm, 3–6 mm wide, ± ovoid, generally enclosed by subtending sheath
Spikelet generally 2.5–3.2 mm; glumes ± equal, lower glume margin hairy; lemma ± = glumes
Chromosomes: 2n=48
Ecology: Wet soils, lake margins, vernal pools
Elevation: < 500 m.
Bioregional distribution: North Coast Ranges, Cascade Range, Great Central Valley, Southwestern California (Los Angeles Co.)
Distribution outside California: Idaho; native to Eurasia
Synonyms: C. niliaca Figari

previous taxon | next taxon
bioregional map for CRYPSIS%20vaginiflora 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 Crypsis vaginiflora
Retrieve dichotomous key for Crypsis
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
  • 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