|TREATMENT FROM THE JEPSON MANUAL (1993)||
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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.-->
AND IS MAINTAINED FOR ARCHIVAL PURPOSES ONLY
Stem 2.57 dm
Leaf: blade rolled, < 1 mm diam
Inflorescence ± open; branches, spikelet stalks widely spreading
Spikelet: glumes 59 mm, ± equal, base swollen; floret 34.5 mm; callus sharp; lemma ± spheric, hairs 2.56 mm, awn 36 mm, deciduous
Ecology: Dry, well-drained, often sandy soil, desert scrub, sagebrush scrub, pinyon/juniper
Elevation: < 3400 m.
Bioregional distribution: Cascade Range, Sierra Nevada, w San Joaquin Valley, Southwestern California, Great Basin Floristic Province, Desert
Distribution outside California: to British Columbia, Great Plains, Mexico
Flowering time: AprJul
Synonyms: Oryzopsis h. (Roem. & Schult.) Ricker
Hybrids with other species, including O. X bloomeri (Bol.) Ricker, have narrower florets and awns 1216 mm. Used by Native Americans for food; highly palatable to livestock
Horticultural information: DRN, DRY, SUN: 1, 2, 3, 7, 8, 9, 10, 11, 14, 15, 16, 18, 19, 20, 21, 22, 23, 24; STBL.
Perennial 45150 cm, sometimes flowering first yr
Leaf: sheath glabrous to soft-hairy; blade 312 mm wide, glabrous, scabrous, or soft-hairy
Inflorescence 520 cm, ± dense, generally becoming open in fruit; lowest branches generally spreading to ascending; upper branches ascending to erect
Spikelet strongly compressed; glumes keel-like, glabrous to short-soft-hairy, lower 6.512 mm, generally 3-veined, upper 915 mm, 57(9)-veined; florets 711; lemma body 1217 mm, 79-veined, keel-like, glabrous to densely short-hairy, awn 315 mm
Ecology: Open scrub, woodland, coniferous forest
Elevation: < 3500 m.
Bioregional distribution: California (except Great Central Valley, Sonoran Desert)
Distribution outside California: to Alaska, Texas, n Mexico
Plants generally self-pollinating, florets often cleistogamous; forms formerly recognized as species widespread, often occurring together.
Stem 615 dm, generally branched; nodes 38
Leaf: sheath glabrous to hairy near collar; ligule 38 mm, fringed; blade 38 mm wide, ± drooping, flat, scabrous
Inflorescence 1025 cm, open to dense; lower branches < 38 cm, ± spreading
Spikelet: glumes 34.5 mm, scabrous, keel long scabrous, generally purplish; axis sparsely long-hairy; callus hairs ± = lemma, dense; lemma 2.54.5 mm, thin, awned just below middle; awn extending ± to lemma tip, straight
Ecology: Moist meadows, bogs, open woodlands
Elevation: 15003400 m.
Bioregional distribution: Klamath Ranges, High Cascade Range, High Sierra Nevada
Distribution outside California: to Alaska, e US
Plants with callus hairs 1/2 lemma length may be hybrids with C. nutkaensis and have been called C. lactea Beal. Some plants set seed asexually
Horticultural information: TRY.