Difference between revisions of "Alopecurus geniculatus"
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|synonyms={{Treatment/ID/Synonym | |synonyms={{Treatment/ID/Synonym | ||
|name=Alopecurus pallescens | |name=Alopecurus pallescens | ||
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| + | |rank=species | ||
}} | }} | ||
|hierarchy=Poaceae;Poaceae subfam. Pooideae;Poaceae tribe Poeae;Alopecurus;Alopecurus geniculatus | |hierarchy=Poaceae;Poaceae subfam. Pooideae;Poaceae tribe Poeae;Alopecurus;Alopecurus geniculatus | ||
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| − | |distribution=Wash.;Va.;D.C;Wis.;Minn.;N.Dak.;Okla.;S.Dak.;Conn.;Mass.;Maine;N.H.;R.I.;Vt.;Wyo.;N.J.;N.Mex.;N.Y.;Pa.;Calif.;Nev.;Ariz.;Iowa;Md.;Mich.;Ohio;Tex.;Utah;W.Va.;Colo.;Alaska;Ill.;Idaho;Alta.;B.C.;Greenland;N.B.;Nfld. | + | |distribution=Wash.;Va.;D.C.;Wis.;Minn.;N.Dak.;Okla.;S.Dak.;Conn.;Mass.;Maine;N.H.;R.I.;Vt.;Wyo.;N.J.;N.Mex.;N.Y.;Pa.;Calif.;Nev.;Ariz.;Iowa;Md.;Mich.;Ohio;Tex.;Utah;W.Va.;Colo.;Alaska;Ill.;Idaho;Alta.;B.C.;Greenland;N.B.;Nfld. and Labr.;N.S.;Ont.;P.E.I.;Que.;Sask.;Yukon;Mont.;Oreg. |
| − | |discussion=<p>Alopecurus geniculatus is native to Eurasia and parts of North America, growing in shallow water, ditches, open wet meadows, shores, and streambanks, from lowland to montane zones. It has been naturalized in eastern North America. The status of populations in the west, including the Queen Charlotte Islands in British Columbia, is less certain. Many occur in moist sites within native rangeland, but these areas have also been affected by European settlement, although less intensively and for a shorter period than those in eastern North America.</p><!-- | + | |discussion=<p><i>Alopecurus geniculatus</i> is native to Eurasia and parts of North America, growing in shallow water, ditches, open wet meadows, shores, and streambanks, from lowland to montane zones. It has been naturalized in eastern North America. The status of populations in the west, including the Queen Charlotte Islands in British Columbia, is less certain. Many occur in moist sites within native rangeland, but these areas have also been affected by European settlement, although less intensively and for a shorter period than those in eastern North America.</p><!-- |
| − | --><p>Alopecurus xhaussknechtianus Asch. 5c Graebn. is a hybrid between A. geniculatus and A. aequalis, which occurs fairly frequently in areas of sympatry, particularly in drier midcontinental areas from Alberta to Saskatchewan, south to Arizona and New Mexico. The hybrids are sterile and appear to have 2n = 14.</p> | + | --><p><i>Alopecurus</i> xhaussknechtianus Asch. 5c Graebn. is a hybrid between <i>A. geniculatus</i> and <i>A. aequalis</i>, which occurs fairly frequently in areas of sympatry, particularly in drier midcontinental areas from Alberta to Saskatchewan, south to Arizona and New Mexico. The hybrids are sterile and appear to have 2n = 14.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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name=Alopecurus geniculatus | name=Alopecurus geniculatus | ||
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|authority=L. | |authority=L. | ||
|rank=species | |rank=species | ||
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|family=Poaceae | |family=Poaceae | ||
|illustrator=Cindy Roché | |illustrator=Cindy Roché | ||
| − | |distribution=Wash.;Va.;D.C;Wis.;Minn.;N.Dak.;Okla.;S.Dak.;Conn.;Mass.;Maine;N.H.;R.I.;Vt.;Wyo.;N.J.;N.Mex.;N.Y.;Pa.;Calif.;Nev.;Ariz.;Iowa;Md.;Mich.;Ohio;Tex.;Utah;W.Va.;Colo.;Alaska;Ill.;Idaho;Alta.;B.C.;Greenland;N.B.;Nfld. | + | |illustration copyright=Utah State University |
| + | |distribution=Wash.;Va.;D.C.;Wis.;Minn.;N.Dak.;Okla.;S.Dak.;Conn.;Mass.;Maine;N.H.;R.I.;Vt.;Wyo.;N.J.;N.Mex.;N.Y.;Pa.;Calif.;Nev.;Ariz.;Iowa;Md.;Mich.;Ohio;Tex.;Utah;W.Va.;Colo.;Alaska;Ill.;Idaho;Alta.;B.C.;Greenland;N.B.;Nfld. and Labr.;N.S.;Ont.;P.E.I.;Que.;Sask.;Yukon;Mont.;Oreg. | ||
|reference=None | |reference=None | ||
|publication title= | |publication title= | ||
|publication year= | |publication year= | ||
|special status= | |special status= | ||
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/200273ad09963decb8fc72550212de541d86569d/coarse_grained_fna_xml/V24/V24_1114.xml |
|subfamily=Poaceae subfam. Pooideae | |subfamily=Poaceae subfam. Pooideae | ||
|tribe=Poaceae tribe Poeae | |tribe=Poaceae tribe Poeae | ||
Latest revision as of 16:22, 11 May 2021
Plants perennial; cespitose. Culms (5)10-60 cm, erect or decumbent, rooting at the lower nodes. Ligules 2-5 mm, obtuse; blades 2-12 cm long, 1-4(7) mm wide; upper sheaths somewhat inflated. Panicles 1.5-7 cm long, 4-8 mm wide. Glumes 1.9-3.5 mm, connate at the base, membranous, pubescent, keels not winged, ciliate, apices obtuse, parallel, often purplish; lemmas 2.5-3 mm, connate in the lower 1/2, glabrous or with a few scattered hairs at the apices, apices truncate to obtuse, awns 3-5(6) mm, geniculate, exceeding the lemmas by (1.2)2-4 mm; anthers (0.9)1.4-2.2 mm, yellow. Caryopses 1-1.5 mm. 2n = 28.
Distribution
Wash., Va., D.C., Wis., Minn., N.Dak., Okla., S.Dak., Conn., Mass., Maine, N.H., R.I., Vt., Wyo., N.J., N.Mex., N.Y., Pa., Calif., Nev., Ariz., Iowa, Md., Mich., Ohio, Tex., Utah, W.Va., Colo., Alaska, Ill., Idaho, Alta., B.C., Greenland, N.B., Nfld. and Labr., N.S., Ont., P.E.I., Que., Sask., Yukon, Mont., Oreg.
Discussion
Alopecurus geniculatus is native to Eurasia and parts of North America, growing in shallow water, ditches, open wet meadows, shores, and streambanks, from lowland to montane zones. It has been naturalized in eastern North America. The status of populations in the west, including the Queen Charlotte Islands in British Columbia, is less certain. Many occur in moist sites within native rangeland, but these areas have also been affected by European settlement, although less intensively and for a shorter period than those in eastern North America.
Alopecurus xhaussknechtianus Asch. 5c Graebn. is a hybrid between A. geniculatus and A. aequalis, which occurs fairly frequently in areas of sympatry, particularly in drier midcontinental areas from Alberta to Saskatchewan, south to Arizona and New Mexico. The hybrids are sterile and appear to have 2n = 14.
Selected References
None.