|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.
Annual, perennial herb
Stem generally erect
Leaves generally cauline
Leaf: sheath margins fused > 1/2 length; ligule membranous; blade flat or folded, drooping
Spikelet 1.58 cm; glumes << lowest floret, translucent, lower 1-veined, upper 13-veined; florets 520; lemma 79-veined, veins prominent, not converging, extending to tip, awn 15 mm; palea ± = lemma, veins with appendages
Species in genus: 5 species: temp w North America., 1 sp. in e Asia
Etymology: (Greek: side beard, from awn at palea base in some species)
PerennialSee the CNPS Inventory for information about endangerment and rarity.
Stem erect, 1016 dm
Leaf: ligule 37 mm; blade 410 mm wide
Inflorescence 2035 cm
Spikelet 2.84.5 cm, ascending; lower glume 36 mm, upper 4.57.5 mm; lemma 89 mm, awn 14 mm
Ecology: Marshy areas, redwood groves
Elevation: < 500 m.
Bioregional distribution: s North Coast, n Central Coast.