Jepson Flora Project: Jepson Interchange    

 
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Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California

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  • 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.

MISCANTHUS

Kelly W. Allred

Perennial, cespitose, generally with rhizomes
Stems tall, erect, solid in X -section
Leaves cauline; sheaths > internodes; ligule membranous, truncate; blade flat
Inflorescence panicle-like; branches ± spike-like, silky-hairy
Spikelets paired, unequally stalked, breaking below glumes, falling as 1 unit; stalks long-hairy at tip; glumes ± equal, > florets, membranous; florets 2, lower vestigial, obscure, upper bisexual; lemma translucent, tip awned; stamens 2–3
Species in genus: ± 20 species: tropical Asia
Etymology: (Greek: stalked flower, from spikelets)
Cult.

Introduced

M. sinensis Andersson


Stems densely clumped, < 3 m
Leaf: blade 4–10 dm, 6–10 cm wide, margin serrate to smooth
Inflorescence 1–3 dm, fan-shaped
Spikelets 3–4 mm; lower spikelet stalk 1–2 mm, upper spikelet stalk 3–6 mm, hairs > spikelet; lower glume leathery, upper papery; awn 8–12 mm
Ecology: Irrigation ditches
Elevation: < 200 m.
Bioregional distribution: n Sierra Nevada Foothills (El Dorado Co.)
Distribution outside California: native to se Asia

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