View source for Rumex hymenosepalus

{{Treatment/ID
|accepted_name=Rumex hymenosepalus
|accepted_authority=Torrey
|publications={{Treatment/Publication
|title=in W. H. Emory, Rep. U.S. Mex. Bound.
|place=2(1): 177. 1859
|year=1859
}}
|common_names=Arizona or canaigre dock;wild-rhubarb
|special_status={{Treatment/ID/Special_status
|code=F
|label=Illustrated
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Rumex arizonicus
|authority=Britton
|rank=species
}} {{Treatment/ID/Synonym
|name=Rumex hymenosepalus var. salinus
|authority=(A. Nelson) Rechinger f.
|rank=variety
}} {{Treatment/ID/Synonym
|name=Rumex salinus
|authority=Kellogg
|rank=species
}} {{Treatment/ID/Synonym
|name=Rumex saxei
|authority=
|rank=species
}}
|hierarchy=Polygonaceae;Polygonaceae subfam. Polygonoideae;Rumex;Rumex subg. Rumex;Rumex sect. Rumex;Rumex hymenosepalus
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Polygonaceae]]</div><div class="higher-taxon"><small>subfamily</small>[[Polygonaceae subfam. Polygonoideae]]</div><div class="higher-taxon"><small>genus</small>[[Rumex]]</div><div class="higher-taxon"><small>subgenus</small>[[Rumex subg. Rumex]]</div><div class="higher-taxon"><small>section</small>[[Rumex sect. Rumex]]</div><div class="higher-taxon"><small>species</small>[[Rumex hymenosepalus]]</div></div>
|volume=Volume 5
|mention_page=page 494, 505, 508
|treatment_page=page 515
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>perennial, glabrous or indistinctly papillose-pubescent, with distinctly tuberous roots and short rhizomes. <b>Stems</b> usually erect, rarely ascending, branched above middle, 25–90(–100) cm. <b>Leaves</b>: ocrea prominent and persistent at maturity, whitish or silvery white, membranous; blade oblong, oblong-elliptic, or obovate-lanceolate, (5–)8–30 × 2–8(–12) cm, base cuneate or narrowly cuneate, margins entire, flat or indistinctly crisped, apex acute or acuminate, rarely obtuse. <b>Inflorescences</b> terminal, occupying distal 1/2 of stem, narrowly paniculate, rarely simple. <b>Pedicels</b> articulated near middle or in proximal 1/3, filiform, 5–15(–20) mm, articulation indistinct. <b>Flowers</b> 5–20 in whorls; inner tepals oblong-cordate or orbiculate-cordate, 11–16 × 9.5–14 mm, base sinuate or emarginate, margins entire, rarely with few extremely small denticles at base, apex obtuse or subacute; tubercles absent. <b>Achenes</b> brown or reddish brown, 4–5(–7) × 2.5–4.5(–5) mm. <b>2n</b> = 40.</span><!--

-->{{Treatment/Body
|phenology=Flowering spring.
|habitat=Sandy and rocky places: plains, slopes, stream beds, alkaline soils
|elevation=0-1700(-2000) m
|distribution=Ariz.;Calif.;Colo.;Mont.;Nev.;N.Mex.;Okla.;Tex.;Utah;Wyo.;Mexico (Baja California;Chihuahua).
|discussion=<p><i>Rumex hymenosepalus</i> is the only species of subsect. Hymenosepali Rechinger f.</p><!--
--><p>Two varieties have been recognized. The typical variety has achenes 5 mm and ovate-elliptic or oblong-cordate inner tepals with a subacute apex. Variety salinus (A. Nelson) Rechinger f. has larger achenes (to 7 mm) and almost orbiculate inner tepals with an obtuse apex.</p><!--
--><p><i>Rumex hymenosepalus</i> was reported also from Montana (J. E. Dawson 1979), but no exact localities were given.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Rumex hymenosepalus
|authority=Torrey
|rank=species
|parent rank=section
|synonyms=Rumex arizonicus;Rumex hymenosepalus var. salinus;Rumex salinus;Rumex saxei
|basionyms=
|family=Polygonaceae
|phenology=Flowering spring.
|habitat=Sandy and rocky places: plains, slopes, stream beds, alkaline soils
|elevation=0-1700(-2000) m
|distribution=Ariz.;Calif.;Colo.;Mont.;Nev.;N.Mex.;Okla.;Tex.;Utah;Wyo.;Mexico (Baja California;Chihuahua).
|reference=None
|publication title=in W. H. Emory, Rep. U.S. Mex. Bound.
|publication year=1859
|special status=Illustrated
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V5/V5_1056.xml
|subfamily=Polygonaceae subfam. Polygonoideae
|genus=Rumex
|subgenus=Rumex subg. Rumex
|section=Rumex sect. Rumex
|species=Rumex hymenosepalus
}}<!--

-->[[Category:Treatment]][[Category:Rumex sect. Rumex]]