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

    THIS PAGE IS NO LONGER UPDATED
    AND IS MAINTAINED FOR ARCHIVAL PURPOSES ONLY
  • Up-to-date information about California vascular plants is available from 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.

ENNEAPOGON

PAPPUS GRASS

Dieter H. Wilken

Perennial, generally cespitose
Stems ascending to erect
Leaves basal and cauline; ligule hairy; blade flat to inrolled
Inflorescence panicle- to spike-like, narrow, generally compact
Spikelet: glumes ± subequal, 3–9-veined; florets 3–6, breaking above glumes and weakly between florets, lower 1–3 florets fertile, bisexual, upper generally sterile, gradually reduced; lemmas < glumes, elliptic to ovate, firmly membranous, rounded on back, generally 9-veined, awned at truncate tip, awns 9, plumose; fertile palea slightly > lemma
Species in genus: ± 30 species: warm temp North America, Africa, Asia, Australia
Etymology: (Greek: nine beards, from 9 plumose awns)
Reference: [Renvoise 1968 Kew Bull 22: 393–401]

previous taxon | next taxon
bioregional map for ENNEAPOGON being generated
 


Retrieve Jepson Interchange Index to Plant Names entry for Enneapogon
Retrieve dichotomous key for Enneapogon
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


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