View source for Equisetum laevigatum

{{Treatment/ID
|accepted_name=Equisetum laevigatum
|accepted_authority=A. Braun
|publications={{Treatment/Publication
|title=Amer. J. Sci. Arts
|place=46: 87. 1844
|year=1844
}}
|common_names=Smooth scouring rush
|basionyms={{Treatment/ID/Basionym
|name=Equisetum funstonii
|authority=A.A. Eaton
|publication_title=E. kansanum J.H. Schaffner
|publication_place=
}}
|synonyms=
|hierarchy=Equisetaceae;Equisetum;Equisetum subg. Equisetum;Equisetum laevigatum
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Equisetaceae]]</div><div class="higher-taxon"><small>genus</small>[[Equisetum]]</div><div class="higher-taxon"><small>subgenus</small>[[Equisetum subg. Equisetum]]</div><div class="higher-taxon"><small>species</small>[[Equisetum laevigatum]]</div></div>
|volume=Volume 2
|mention_page=
|treatment_page=
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Aerial </b>stems lasting less than a year, occasionally overwintering in the southwestern United States, usually unbranched, 20–150 cm; lines of stomates single; ridges 10–32. <b>Sheaths</b> green, elongate, 7–15 × 3–9 mm; teeth 10–32, articulate and usually shed early, leaving dark rim on sheath. <b>Cone</b> apex rounded to apiculate with blunt tip; spores green, spheric. <b>2n</b> =216.</span><!--

-->{{Treatment/Body
|phenology=Cones maturing in spring–early summer.
|habitat=Moist prairies, riverbanks, roadsides
|elevation=1530–3500 m
|distribution=Alta.;B.C.;Man.;Ont.;Que.;Sask.;Ariz.;Ark.;Calif.;Colo.;Idaho;Ill.;Ind.;Iowa;Kans.;Mich.;Minn.;Mo.;Mont.;Nebr.;Nev.;N.Mex.;N.Dak.;Ohio;Okla.;Oreg.;S.Dak.;Tex.;Utah;Wash.;Wis.;Wyo.;n Mexico including Baja California.
|discussion=<p>Schaffner named this species <i>Equisetum</i> kansanum because he applied the name <i>E. laevigatum</i> to what we now know is the hybrid <i>E.</i> × <i>ferrissii</i>. The coarser-stemmed, occasionally persistent forms in the southwestern United States have been called <i>Equisetum</i> funstonii.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Equisetum laevigatum
|author=
|authority=A. Braun
|rank=species
|parent rank=subgenus
|synonyms=
|basionyms=Equisetum funstonii
|family=Equisetaceae
|phenology=Cones maturing in spring–early summer.
|habitat=Moist prairies, riverbanks, roadsides
|elevation=1530–3500 m
|distribution=Alta.;B.C.;Man.;Ont.;Que.;Sask.;Ariz.;Ark.;Calif.;Colo.;Idaho;Ill.;Ind.;Iowa;Kans.;Mich.;Minn.;Mo.;Mont.;Nebr.;Nev.;N.Mex.;N.Dak.;Ohio;Okla.;Oreg.;S.Dak.;Tex.;Utah;Wash.;Wis.;Wyo.;n Mexico including Baja California.
|reference=None
|publication title=Amer. J. Sci. Arts
|publication year=1844
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V2/V2_20.xml
|genus=Equisetum
|subgenus=Equisetum subg. Equisetum
|species=Equisetum laevigatum
}}<!--

-->[[Category:Treatment]][[Category:Equisetum subg. Equisetum]]