View source for Rumex cristatus

{{Treatment/ID
|accepted_name=Rumex cristatus
|accepted_authority=de Candolle
|publications={{Treatment/Publication
|title=Cat. Pl. Hort. Monsp.,
|place=139. 1813
|year=1813
}}
|common_names=Greek or crested dock
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Rumex graecus
|authority=Boissier & Heldreich
}} {{Treatment/ID/Synonym
|name=Rumex patientia subsp. graecus
|authority=(Boissier & Heldreich) Lindberg
}}
|hierarchy=Polygonaceae;Polygonaceae subfam. Polygonoideae;Rumex;Rumex subg. Rumex;Rumex sect. Rumex;Rumex cristatus
|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 cristatus]]</div></div>
|volume=Volume 5
|mention_page=page 495
|treatment_page=page 521
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>perennial, glabrous or indistinctly papillose exclusively on veins of leaf blades abaxially, with fusiform, vertical rootstock. <b>Stems</b> erect, branched from above middle or in distal 2/3, 70–150(–200) cm. <b>Leaves</b>: ocrea deciduous or partially persistent at maturity; blade broadly lanceolate to oblong-lanceolate, normally 15–25(–35) × 5–7(–12) cm, base truncate, rounded, or slightly cordate, margins entire, undulate or weakly crisped, occasionally flat, apex acute or acuminate. <b>Inflorescences</b> terminal, occupying distal 1/2–2/3 of stem, normally dense or interrupted near base, broadly paniculate (branches of inflorescence mostly with 2d-order branches), branches usually straight or arcuate, rarely indistinctly flexuous. <b>Pedicels</b> articulated near middle, filiform, 6–14 mm, articulation distinctly swollen. <b>Flowers</b> 15–20 in whorls; inner tepals orbiculate, 6–8(–9) × 6–7.5(–8) mm, base usually distinctly cordate, margins entire or subentire near apex, distinctly dentate in basal 1/2, apex acute or subacute, teeth 0.5–1 mm; tubercles normally 3, rarely 1, distinctly unequal. <b>Achenes</b> dark brown or brown, 2.8–3.5 × 2–2.5 mm. <b>2n</b> = 80.</span><!--

-->{{Treatment/Body
|phenology=Flowering late spring–early summer.
|habitat=Waste places, roadsides, along railroads, other ruderal habitats
|elevation=100-300 m
|distribution=Ill.;Kans.;Mo.;se Europe (Balkans;Greece);naturalized elsewhere in s Europe.
|discussion=<p><i>Rumex cristatus</i> is known from Missouri, Illinois, and Kansas; it may occur also in adjacent states (P. Shildneck et al. 1981). Although separable by the characters given in the key, <i>R. cristatus</i> sometimes is misidentified as <i>R. patientia</i>. The morphological distinctions between these related species are obscured by possible hybridization. Such hybrids are known as R. ×xenogenus Rechinger f. (G. D. Kitchener 2002); they may be expected in North America in areas where the parental species grow together.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Rumex cristatus
|author=
|authority=de Candolle
|rank=species
|parent rank=section
|synonyms=Rumex graecus;Rumex patientia subsp. graecus
|basionyms=
|family=Polygonaceae
|phenology=Flowering late spring–early summer.
|habitat=Waste places, roadsides, along railroads, other ruderal habitats
|elevation=100-300 m
|distribution=Ill.;Kans.;Mo.;se Europe (Balkans;Greece);naturalized elsewhere in s Europe.
|introduced=true
|reference=None
|publication title=Cat. Pl. Hort. Monsp.,
|publication year=1813
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V5/V5_1068.xml
|subfamily=Polygonaceae subfam. Polygonoideae
|genus=Rumex
|subgenus=Rumex subg. Rumex
|section=Rumex sect. Rumex
|species=Rumex cristatus
}}<!--

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