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Acrachne racemosa (Roem. & Schult.) Ohwi  
Family: Poaceae
Monsoon Grass
[Acrachne verticillata (Roxb.) Wight & Arn. ex Chiov., moreEleusine verticillata Roxb., Leptochloa racemosa (B. Heyne ex Roem. & Schult.) Kunth, Leptochloa schimperana Hochst., Leptochloa schimperiana Hochst., Leptochloa verticillata (Roxb.) Kunth]
Acrachne racemosa image
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Sylvia M. Phillips. Flora of North America
Culms 17-50 cm. Blades 7-20 cm long, 5-11.5 mm wide, bases rounded, setaceous apically. Inflorescence branches 1.5-10 cm, in whorls of 2-5, either subdigitate or on rachises up to 15 cm long. Spikelets 5.5-13 mm, oblong, serrate in outline, with 6-25 florets. Lower glumes 1.2-2.9 mm, linear-oblong, acute, mucronate; upper glumes 1.5-3 mm, lanceolate, acuminate, awn-tipped; lemmas 2-2.8 mm, narrowly ovate, keels scabrous, shallowly concave distally, midveins excurrent, forming stout, 0.3-0.9 mm awns; lateral veins also slightly excurrent. Fruits ellipsoid; seeds blackish, rugose, finely granular. 2n = 36.

Acrachne racemosa grows in areas of seasonal rainfall in tropical regions of Africa, Asia, and Australia. It has been found in Riverside County, California and may become established there.

©Utah State University. Reproduced with permission.

Acrachne racemosa
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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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