View source for Rumex graminifolius

{{Treatment/ID
|accepted_name=Rumex graminifolius
|accepted_authority=Rudolph ex Lambert
|publications={{Treatment/Publication
|title=Trans. Linn. Soc. London
|place=10: 264, plate 10. 1811
|year=1811
}}
|common_names=Grass-leaved or grassleaf sorrel
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Acetosella graminifolia
|authority=(Rudolph ex Lambert) Á. Löve
|rank=species
}} {{Treatment/ID/Synonym
|name=Rumex acetosella var. graminifolius
|authority=(Rudolph ex Lambert) Schrenk
|rank=variety
}} {{Treatment/ID/Synonym
|name=Rumex angustissimus
|authority=Ledebour
|rank=species
}}
|hierarchy=Polygonaceae;Polygonaceae subfam. Polygonoideae;Rumex;Rumex subg. Acetosella;Rumex graminifolius
|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. Acetosella]]</div><div class="higher-taxon"><small>species</small>[[Rumex graminifolius]]</div></div>
|volume=Volume 5
|mention_page=page 490, 498, 500
|treatment_page=page 499
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>perennial, glabrous, with creeping rhizomes and elongated underground stolons. <b>Stems</b> erect or ascending, rarely almost prostrate, branched at base and in distal 1/2 (in inflorescence), 7–30(–40) cm; shoots not crowded, ± elongated. <b>Leaves</b>: ocrea whitish or silvery, membranous; blade normally narrowly linear, or occasionally linear-lanceolate, usually not hastate, rarely some with indistinct basal lobes, 3–10 × 0.1–0.2(–0.4) cm, base narrowly cuneate, margins entire, flat or occasionally slightly revolute, apex acute or obtuse. <b>Inflorescences</b> terminal, occupying distal 2/3 of stem, usually lax and interrupted to top, paniculate, with branches often reflexed. <b>Pedicels</b> 1–4 mm. <b>Flowers</b> (3–)4–6(–8) in whorls; inner tepals distinctly enlarged, normally 2–2.6 × 1.5–2(–2.2) mm (free wing 0.3–0.5 mm wide), base cuneate, apex obtuse or subacute. <b>Achenes</b> brown or yellowish brown, 1.5–2 × 1–1.5 mm. <b>2n</b> = 56.</span><!--

-->{{Treatment/Body
|phenology=Flowering late spring–summer.
|habitat=Sandy and gravelly shores and slopes
|elevation=0-400 m
|distribution=Greenland;Alaska;n Eurasia.
|discussion=<p>Records of <i>Rumex graminifolius</i> from Alaska in most cases refer to <i>R. beringensis</i> and <i>R. krausei</i>. The occurrence of typical <i>R. graminifolius</i> in northwestern North America remains uncertain. Some literature records of <i>R. acetosella</i> from northeastern North America (Greenland, Labrador, Newfoundland) may refer to <i>R. graminifolius</i> or <i>R. acetosella</i> <i></i>subsp.<i> arenicola</i>. <i>Rumex graminifolius</i> was reported from Newfoundland also by M. L. Fernald (1950), but that record requires confirmation.</p><!--
--><p>Some plants from northeastern Eurasia (northeastern Russian Far East and northern Siberia) are known in Russian literature as <i>Rumex</i> aureostigmaticus Komarov [Acetosella aureostigmatica (Komarov) Tzvelev], <i>R. acetosella</i> var. subspathulatus Trautvetter, or <i>R. graminifolius</i> var. subspathulatus (Trautvetter) Tolmatchew (see A. I. Tolmachew 1966; N. N. Tzvelev 1989b). They differ from <i>R. graminifolius</i> in having narrower inner tepals and wider spatulate leaves, usually without basal lobes. I have seen only one North American collection approaching this entity. Some specimens (mostly immature or staminate plants) from western Alaska differ from both <i>R. graminifolius</i> and <i>R. beringensis</i> in their habit; they need additional study. Some chromosome counts different from the most typical number (2n = 56) that have been reported for <i>R. graminifolius</i> in the broad sense from northeastern Russian Far East by several Russian authors (see references in Tzvelev) most probably also refer to R. aureostigmaticus. It is also possible that arctic and subarctic plants identified by various authors as R. aureostigmaticus, <i>R. acetosella</i> var. subspathulatus, <i>R. graminifolius</i> var. subspathulatus, and <i>R. acetosella</i> <i></i>subsp.<i> arenicola</i> belong to one polymorphic complex of plants intermediate between <i>R. acetosella</i> and <i>R. graminifolius</i>.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Rumex graminifolius
|authority=Rudolph ex Lambert
|rank=species
|parent rank=subgenus
|synonyms=Acetosella graminifolia;Rumex acetosella var. graminifolius;Rumex angustissimus
|basionyms=
|family=Polygonaceae
|phenology=Flowering late spring–summer.
|habitat=Sandy and gravelly shores and slopes
|elevation=0-400 m
|distribution=Greenland;Alaska;n Eurasia.
|reference=None
|publication title=Trans. Linn. Soc. London
|publication year=1811
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V5/V5_1023.xml
|subfamily=Polygonaceae subfam. Polygonoideae
|genus=Rumex
|subgenus=Rumex subg. Acetosella
|species=Rumex graminifolius
}}<!--

-->[[Category:Treatment]][[Category:Rumex subg. Acetosella]]