Blooms: May - July
Habit: herb
Duration: annual
Origin: Introduced
Distribution: Introduced in southwest British Columba and Oregon's Wilamette Valley, south into California; more common in central and eastern United States.
Habitat: Weed of waste places.
Habit: herb
Duration: annual
Origin: Introduced
Distribution: Introduced in southwest British Columba and Oregon's Wilamette Valley, south into California; more common in central and eastern United States.
Habitat: Weed of waste places.
Species Description:
General: Glabrous annual, the culms 2-5 dm. tall.
Leaves: Sheaths open, inflated; ligules 2-7 mm. long, obtuse; blades flat, 2-5 mm. broad, the margins freed from the sheath at different levels.
Flowers: Inflorescence a bristly, dense, ovoid panicle 1-4 cm. long; spikelets in pairs on very short branches, one spikelet fertile and sessile, the other short-pedicellate and sterile; sterile spikelet with several lemmas similar to the keeled, long-pointed glumes; fertile spikelet 2-flowered, the upper flower sometimes rudimentary; glumes strongly keeled and flattened, 5-6 mm. long, with awn tips 1-2.5 mm. long; lemmas somewhat lopsided, about 5 mm. long, rounded, with an awn 3-10 mm. long.
General: Glabrous annual, the culms 2-5 dm. tall.
Leaves: Sheaths open, inflated; ligules 2-7 mm. long, obtuse; blades flat, 2-5 mm. broad, the margins freed from the sheath at different levels.
Flowers: Inflorescence a bristly, dense, ovoid panicle 1-4 cm. long; spikelets in pairs on very short branches, one spikelet fertile and sessile, the other short-pedicellate and sterile; sterile spikelet with several lemmas similar to the keeled, long-pointed glumes; fertile spikelet 2-flowered, the upper flower sometimes rudimentary; glumes strongly keeled and flattened, 5-6 mm. long, with awn tips 1-2.5 mm. long; lemmas somewhat lopsided, about 5 mm. long, rounded, with an awn 3-10 mm. long.
Accepted Name:
Cynosurus echinatus L.Synonyms:
(none)
Treated in Flora of the PNW as:
Cynosurus echinatus
Additional Resources:
PNW Herbaria Specimens: View list of Cynosurus echinatus specimens in the Consortium of Pacific Northwest Herbaria database.
WTU Herbarium Specimens: View list of Cynosurus echinatus specimens in the WTU Herbarium database.
Washington Flora Checklist: Cynosurus echinatus treatment.
E-Flora BC: Cynosurus echinatus atlas page.
CalPhotos: Cynosurus echinatus images.
USDA Plants Database: Cynosurus echinatus.
Ben Legler, 2005
Ben Legler, 2005
Ben Legler, 2005
Ben Legler, 2005
G. D. Carr, 2006
G. D. Carr, 2006
G. D. Carr, 2006
G. D. Carr, 2006
G. D. Carr, 2006
G. D. Carr, 2006
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 WA Native Plant Society |
