|Jepson Flora Project: Jepson Interchange|
|TREATMENT FROM THE JEPSON MANUAL (1993)||
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Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California
AND IS MAINTAINED FOR ARCHIVAL PURPOSES ONLY
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) 1many; 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: 650900 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.
Perennial, generally cespitose, generally ± glabrous; bisexual, dioecious in F. kingii
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 13-veined, upper 35-veined; axis breaking above glumes and between florets, florets 210, 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 2:525536]
See the CNPS Inventory for information about endangerment and rarity.
Stems 0.43 dm, loosely tufted; nodes ± concealed
Leaf: sheath open 1/2 length, shredding with age; ligule < 0.5 mm; blade 212 cm, << 0.5 mm wide, folded, often V-shaped in section, soft
Inflorescence 14 cm, narrow, generally branched only at lowest node
Spikelet 2.55 mm; lower glume ± 12.5 mm, upper 23.5 mm; florets 2; lemma ± 23.5 mm, sparsely scabrous near sharp tip, awn 0.51.5 mm; anthers ± 1 mm; ovary tip sparsely short-hairy
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.