| TREATMENT FROM THE JEPSON MANUAL (1993) |
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Jepson Interchange (more information) |
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©Copyright 1993 by the Regents of the University of California
For up-to-date information about California vascular plants, visit the Jepson eFlora. |
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) 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.
Perennial, cespitose
Stem < 1 mm diam
Leaf: sheath glabrous; ligule membranous
Inflorescence panicle-like; axis glabrous, branches glabrous to sparsely puberulent
Spikelet: glumes ± equal, slightly > floret (except awn), purplish, veins not evident, tip rounded to acute; axis breaking above glumes; floret 1; callus 0.1–0.8 mm, blunt; lemma thick, membranous, evenly hairy, margins open with age, awn 12–30 mm, persistent
Species in genus: ± 10 species: temp North America, Asia
Etymology: (Greek: feather grass)
Reference: [Barkworth 1983 Syst Bot 8:395–419]
| Native |
Stem 2–4 dm
Leaf: blade ± 0.3 mm diam, inrolled
Inflorescence 6–10 cm; branches flexible, ascending
Spikelet: glumes 3–4.5 mm; floret 2.8–4.2 mm; lemma awn 10–14 mm, weakly bent once or twice
Chromosomes: 2n=22
Ecology: Subalpine, alpine streambanks, meadows
Elevation: 2700–3500 m.
Bioregional distribution: c&s High Sierra Nevada
Synonyms: Oryzopsis k. (Bol.) BealHorticultural information: IRR, DRN, SUN: 1, 2, 3, 6, 7, 14, 15, 16, 17, 18, 19, 20, 21.