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    THIS PAGE IS NO LONGER UPDATED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.

FESTUCA

FESCUE

Susan G. Aiken

Perennial, generally cespitose, generally ± glabrous; bisexual, dioecious in F. kingii
Stem erect
Leaves ± basal; sheath generally persisting; collar generally glabrous; ligule generally < 1 mm, membranous, truncate, minutely fringed; blade flat or rolled, basal lobes generally 0
Inflorescence panicle-like; branches dense and appressed to open and spreading
Spikelet: glumes < lowest floret, unequal, lower 1–3-veined, upper 3–5-veined; axis breaking above glumes and between florets, florets 2–10, generally bisexual; lemma base generally glabrous, 5-veined (rarely 3- or 7-veined), not converging at tip; awn generally terminal, straight, glabrous; palea ± = lemma; stamens 3
Fruit free from palea, generally beakless
Etymology: (Latin: ancient name)
Reference: [Frederiksen 1982 Nord J Bot 2:525–536]

Native

F. minutiflora Rydb.


Stems 0.4–3 dm, loosely tufted; nodes ± concealed
Leaf: sheath open 1/2 length, shredding with age; ligule < 0.5 mm; blade 2–12 cm, << 0.5 mm wide, folded, often V-shaped in section, soft
Inflorescence 1–4 cm, narrow, generally branched only at lowest node
Spikelet 2.5–5 mm; lower glume ± 1–2.5 mm, upper 2–3.5 mm; florets 2; lemma ± 2–3.5 mm, sparsely scabrous near sharp tip, awn 0.5–1.5 mm; anthers ± 1 mm; ovary tip sparsely short-hairy
Chromosomes: 2n=28
Ecology: Uncommon. Moist, shady banks
Elevation: > 3000 m.
Bioregional distribution: c High Sierra Nevada (Mount Dana, Tuolumne-Mono Co. line)
Distribution outside California: to Yukon, w Canada, Colorado
Sometimes confused with F. brachyphylla.
See the CNPS Inventory for information about endangerment and rarity.
previous taxon | next taxon
bioregional map for FESTUCA%20minutiflora being generated
 


Retrieve Jepson Interchange Index to Plant Names entry for Festuca minutiflora
Retrieve dichotomous key for Festuca
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