View source for Rumex densiflorus

{{Treatment/ID
|accepted_name=Rumex densiflorus
|accepted_authority=Osterhout
|publications={{Treatment/Publication
|title=Erythea
|place=6: 13. 1898
|year=1898
}}
|common_names=Dense-flowered dock
|special_status={{Treatment/ID/Special_status
|code=F
|label=Illustrated
}}{{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Rumex polyrrhizus
|authority=Greene
|rank=species
}}
|hierarchy=Polygonaceae;Polygonaceae subfam. Polygonoideae;Rumex;Rumex subg. Rumex;Rumex sect. Rumex;Rumex densiflorus
|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 densiflorus]]</div></div>
|volume=Volume 5
|mention_page=page 494, 516
|treatment_page=page 515
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>perennial, glabrous or indistinctly papillose-pubescent, with creeping horizontal rhizome. <b>Stems</b> erect, branched above middle (only in inflorescence), 50–100 cm. <b>Leaves</b>: ocrea deciduous or partially persistent at maturity; blade with large lateral veins alternating with short ones, oblong or oblong-lanceolate, 30–40(–50) × 10–12 cm, more than 3 times as long as wide, base broadly cuneate, truncate, or weakly cordate, margins entire or indistinctly repand, flat, apex obtuse or broadly acute. <b>Inflorescences</b> terminal, occupying distal 1/2 of stem, usually dense, narrowly paniculate. <b>Pedicels</b> articulated in proximal 1/3, filiform, 6–16 mm, articulation indistinct. <b>Flowers</b> 10–20 in whorls; inner tepals ovate-triangular or subcordate, 5–6 × 4.5–6 mm, widest at or near middle, base weakly emarginate, margins entire, erose, or indistinctly denticulate mostly at base, apex abruptly narrowed, acute or subacute; tubercles absent. <b>Achenes</b> deep brown to reddish brown, 2.5–4(–4.5) × 1.8–2.5 mm. <b>2n</b> = 120.</span><!--

-->{{Treatment/Body
|phenology=Flowering late spring–early summer.
|habitat=Along streams and rivers in montane, subalpine, and alpine zones
|elevation=1500-3000(-3500) m
|distribution=Colo.;N.Mex.;Wyo.
|discussion=<p>The following three species are closely related to <i>Rumex densiflorus</i>, all belonging to subsect. Densiflori Rechinger f., and possibly form one polymorphic “macrospecies” (K. H. Rechinger 1937). Á. Löve (1986) treated <i>R. orthoneurus</i> and <i>R. pycnanthus</i> as subspecies of <i>R. densiflorus</i>. However, the variability of this aggregate is insufficiently known, and I prefer to treat it as consisting of four “microspecies.”</p><!--
--><p><i>Rumex densiflorus</i> is reported from northwestern New Mexico (W. C. Martin and C. R. Hutchins 1980), where it most probably occurs; records for southern Idaho (R. J. Davis 1952) and Arizona (J. H. Lehr 1978) need confirmation.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Rumex densiflorus
|authority=Osterhout
|rank=species
|parent rank=section
|synonyms=Rumex polyrrhizus
|basionyms=
|family=Polygonaceae
|phenology=Flowering late spring–early summer.
|habitat=Along streams and rivers in montane, subalpine, and alpine zones
|elevation=1500-3000(-3500) m
|distribution=Colo.;N.Mex.;Wyo.
|reference=None
|publication title=Erythea
|publication year=1898
|special status=Illustrated;Endemic
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/bb6b7e3a7de7d3b7888a1ad48c7fd8f5c722d8d6/coarse_grained_fna_xml/V5/V5_1057.xml
|subfamily=Polygonaceae subfam. Polygonoideae
|genus=Rumex
|subgenus=Rumex subg. Rumex
|section=Rumex sect. Rumex
|species=Rumex densiflorus
}}<!--

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