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Cynosurus echinatus L.  
Family: Poaceae
Bristly Dog's-Tail Grass, more...bristly dogstail grass, Bristly Dogtail
Cynosurus echinatus image
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Sandy Long. Flora of North America

Plants annual, tufted. Culms 9-150 cm, clustered or solitary. Sheaths smooth, glabrous; ligules 2.5-5(10) mm, obtuse, entire; blades 3-13.5(23) cm long, 2.5-14 mm wide, scabrous. Panicles 1-4(8) cm long, 0.7-2 cm wide, ovoid to almost globose, unilateral. Spikelets 7-14 mm; subsessile or shortly pedicellate, pedicels to 1.6 mm. Sterile spikelets with 6-18 florets; glumes and lemmas similar, subulate to linear-lanceolate, glabrous, sometimes scabridulous, awned, awns to 8 mm. Fertile spikelets with 1-5 florets, glumes and lemmas dissimilar; glumes 5.5-12 mm long, 0.4-0.9 mm wide, narrowly lanceolate, laterally compressed, hyaline, glabrous, 1-veined, keeled, awned, awns 0.5-2.2 mm; rachilla internodes 0.9-1.3 mm; lemmas 4-7 mm, slightly dorsally compressed, chartaceous or coriaceous, not keeled, lower 1/2 smooth, glabrous, distal 1/2 villous or scabrid, apices hyaline, ciliolate, entire or bidentate, awned, awns 5-18(25) mm; anthers 1-4 mm. 2n = 14.

Cynosurus echinatus is native to southern Europe. It is now established in North America, South America, and Australia. It usually grows in dry open habitats but has also been found at the edge of salt marshes.

Cynosurus echinatus
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Liz Makings
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Jaroenchai Phewban
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The National Science Foundation
Development supported by National Science Foundation Grants (DBI 9983132, BRC 0237418, DBI 0743827, DBI 0847966)
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