Difference between revisions of "Polypogon interruptus"

Kunth
Common names: Ditch beardgrass
Treatment appears in FNA Volume 24. Treatment on page 663.
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|distribution=Colo.;N.Mex.;Tex.;La.;Utah;Calif.;Nebr.;Wis.;N.Y.;Pacific Islands (Hawaii);Wyo.;Okla.;Wash.;Ariz.;Oreg.;Nev.
 
|distribution=Colo.;N.Mex.;Tex.;La.;Utah;Calif.;Nebr.;Wis.;N.Y.;Pacific Islands (Hawaii);Wyo.;Okla.;Wash.;Ariz.;Oreg.;Nev.
|discussion=<p>Polypogon interruptus grows in moist soil at lower elevations. It is native to the Western Hemisphere, extending south from the western United States into northern Mexico, and through the American tropics to Argentina and Bolivia. The more eastern records may indicate introductions; it is not known whether or not the species persists at these locations.</p>
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|discussion=<p><i>Polypogon interruptus</i> grows in moist soil at lower elevations. It is native to the Western Hemisphere, extending south from the western United States into northern Mexico, and through the American tropics to Argentina and Bolivia. The more eastern records may indicate introductions; it is not known whether or not the species persists at these locations.</p>
 
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|special status=
 
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|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V24/V24_934.xml
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|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V24/V24_934.xml
 
|subfamily=Poaceae subfam. Pooideae
 
|subfamily=Poaceae subfam. Pooideae
 
|tribe=Poaceae tribe Poeae
 
|tribe=Poaceae tribe Poeae

Revision as of 16:23, 18 September 2019

Please click on the illustration for a higher resolution version.
Illustrator: Cindy Roché

Copyright: Utah State University

Plants perennial, often flowering the first year. Culms 20-80 (90) cm, more or less decumbent. Sheaths smooth; ligules 2-6 mm, scabridulous-pubescent; blades 5-9 cm long, 3-6 mm wide. Panicles 3-15 cm long, 0.5-3 cm wide, usually interrupted or lobed; pedicels not developed; stipes 0.2-0.7 mm. Glumes 2-3 mm, subequal, scabrous, larger prickles extending up the keel beyond midlength, not tapering to the apices, apices acute to truncate, unlobed or the lobes to 0.1 mm, awned, awns 1.5-3.2 mm, those of the lower and upper glumes subequal; lemmas 0.8-1.5 mm, glabrous, smooth and shiny, apices obtuse, not emarginate, awned, awns 1-3.2 mm; paleas about 3/4 as long as the lemmas; anthers 0.5-0.7 mm. 2n = 28, 42.

Distribution

Colo., N.Mex., Tex., La., Utah, Calif., Nebr., Wis., N.Y., Pacific Islands (Hawaii), Wyo., Okla., Wash., Ariz., Oreg., Nev.

Discussion

Polypogon interruptus grows in moist soil at lower elevations. It is native to the Western Hemisphere, extending south from the western United States into northern Mexico, and through the American tropics to Argentina and Bolivia. The more eastern records may indicate introductions; it is not known whether or not the species persists at these locations.

Selected References

None.

Lower Taxa

None.