View source for Alopecurus aequalis

{{Treatment/ID
|accepted_name=Alopecurus aequalis
|accepted_authority=Sobol.
|publications=
|basionyms=
|synonyms=
|hierarchy=Poaceae;Poaceae subfam. Pooideae;Poaceae tribe Poeae;Alopecurus;Alopecurus aequalis
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Poaceae]]</div><div class="higher-taxon"><small>subfamily</small>[[Poaceae subfam. Pooideae]]</div><div class="higher-taxon"><small>tribe</small>[[Poaceae tribe Poeae]]</div><div class="higher-taxon"><small>genus</small>[[Alopecurus]]</div><div class="higher-taxon"><small>species</small>[[Alopecurus aequalis]]</div></div>
|volume=Volume 24
|mention_page=
|treatment_page=page 784
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>perennial; cespitose. <b>Culms</b> 9-75 cm, erect or decumbent. <b>Ligules</b> 2-6.5 mm, obtuse; blades 2-10 cm long, 1-5(8) mm wide; upper sheaths not inflated. <b>Panicles</b> 1-9 cm long, 3-9 mm wide. <b>Glumes</b> 1.8-3.7 mm, connate near the base, membranous, pubescent on the sides, keels not winged, ciliate, apices obtuse, sometimes erose, pale green, occasionally purplish; lemmas 1.5-2.5(3.5) mm, connate in the lower 1/3-1/2, glabrous, apices obtuse, awns 0.7-3 mm, straight, exceeding the lemmas by 0-2.5 mm; anthers 0.5-1.2 mm, usually pale to deep yellow or orange, rarely purple. <b>Caryopses</b> 1-1.8 mm. <b>2n</b> = 14, 28.</span><!--

-->{{Treatment/Body
|distribution=Minn.;Wash.;Del.;Wis.;Ariz.;Calif.;Conn.;Ill.;Ind.;Kans.;Ky.;Mass.;Md.;Maine;Mich.;Mo.;Mont.;N.Dak.;Nebr.;N.Y.;Oreg.;Pa.;S.Dak.;Tenn.;Utah;Va.;Wyo.;Alta.;B.C.;Greenland;Man.;N.B.;Nfld. And Labr.;N.S.;N.W.T.;Ont.;P.E.I.;Que.;Sask.;Yukon;N.H.;N.J.;N.Mex.;Nev.;Colo.;Alaska;Vt.;Iowa;Idaho;Ohio
|discussion=<p><i>Alopecurus aequalis</i> is native to temperate zones of the Northern Hemisphere. It generally grows in wet meadows, forest openings, shores, springs, and along streams, as well as in ditches, along roadsides, and in other disturbed sites, from sea level to subalpine elevations.</p><!--
--><p><i>Alopecurus aequalis</i> is the most widespread and variable species of <i>Alopecurus</i> in the Flora region. Despite its variability, the only phenotype meriting formal recognition is that found in the low marshes of Marin and Sonoma counties, California. Some high elevation plants of the Sierra <i>Nevada</i> have unusually long awns (exserted by up to 1.5 mm) and anthocyanic spikelets but, like the semi-aquatic ecotype <i>A. aequalis</i> var. natans (Wahlenb.) Fernald, they do not warrant taxonomic recognition.</p><!--
--><p><i>Alopecurus</i> xhaussknechtianus Asch. & Graebn. is a hybrid between <i>A. aequalis</i> and <i>A. geniculatus</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 apparently have 2n = 14.</p>
|tables=
|references=
}}<!--

--><div class="treatment-key">
==Key==
<div class="treatment-key-group">
  
{| class="wikitable fna-keytable"
|-id=key-0-1
|1
|Panicles 3-6 mm wide; glumes 1.8-3 mm long; awns not exceeding the lemmas or exceeding them by less than 1 mm; anthers 0.5-0.9 mm long
|[[Alopecurus aequalis var. aequalis|Alopecurus aequalis var. aequalis]]
|-id=key-0-1
|1
|Panicles 4—9 mm wide; glumes to 3.7 mm long; awns exceeding the lemmas by 1-2.5 mm; anthers 1-1.2 mm long
|[[Alopecurus aequalis var. sonotnensis|Alopecurus aequalis var. sonotnensis]]
|}
</div></div><!--

-->{{#Taxon:
name=Alopecurus aequalis
|author=
|authority=Sobol.
|rank=species
|parent rank=genus
|synonyms=
|basionyms=
|family=Poaceae
|distribution=Minn.;Wash.;Del.;Wis.;Ariz.;Calif.;Conn.;Ill.;Ind.;Kans.;Ky.;Mass.;Md.;Maine;Mich.;Mo.;Mont.;N.Dak.;Nebr.;N.Y.;Oreg.;Pa.;S.Dak.;Tenn.;Utah;Va.;Wyo.;Alta.;B.C.;Greenland;Man.;N.B.;Nfld. And Labr.;N.S.;N.W.T.;Ont.;P.E.I.;Que.;Sask.;Yukon;N.H.;N.J.;N.Mex.;Nev.;Colo.;Alaska;Vt.;Iowa;Idaho;Ohio
|reference=None
|publication title=
|publication year=
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V24/V24_1115.xml
|subfamily=Poaceae subfam. Pooideae
|tribe=Poaceae tribe Poeae
|genus=Alopecurus
|species=Alopecurus aequalis
}}<!--

-->[[Category:Treatment]][[Category:Alopecurus]]