View source for Caltha palustris

{{Treatment/ID
|accepted_name=Caltha palustris
|accepted_authority=Linnaeus
|publications={{Treatment/Publication
|title=Sp. Pl.
|place=1: 558. 1753
|year=1753
}}
|common_names=Cowslip;cowflock;kingcup;buttercup;populage des marais;soucis d'eau
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Caltha arctica
|authority=R.Brown
|rank=species
}} {{Treatment/ID/Synonym
|name=Caltha asarifolia
|authority=de Candolle
|rank=species
}} {{Treatment/ID/Synonym
|name=Caltha palustris subsp. arctica
|authority=(R. Brown) Hultén
|rank=subspecies
}} {{Treatment/ID/Synonym
|name=Caltha palustris subsp. asarifolia
|authority=(de Candolle) Hultén
|rank=subspecies
}} {{Treatment/ID/Synonym
|name=Caltha palustris var. arctica
|authority=(R. Brown) Huth
|rank=variety
}} {{Treatment/ID/Synonym
|name=Caltha palustris var. asarifolia
|authority=(de Candolle) Huth
|rank=variety
}} {{Treatment/ID/Synonym
|name=Caltha palustris var. flabellifolia
|authority=(Pursh) Torrey & A. Gray
|rank=variety
}}
|hierarchy=Ranunculaceae;Caltha;Caltha palustris
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Ranunculaceae]]</div><div class="higher-taxon"><small>genus</small>[[Caltha]]</div><div class="higher-taxon"><small>species</small>[[Caltha palustris]]</div></div>
|volume=Volume 3
|mention_page=
|treatment_page=
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Stems </b>leafy, permanently erect, or sprawling with age and producing roots and shoots at nodes. <b>Basal</b> leaves: blade rounded to ovate, reniform, or cordate, largest (0.5-)2-12.5 × (1-)2-19 cm, margins entire or crenate to dentate. <b>Inflorescences</b> 1-7-flowered. <b>Flowers</b> 10-45 mm diam.; sepals yellow or orange, (6-)10-25 mm. <b>Follicles</b> 5-15(-25), spreading, sessile, ellipsoid; bodies 8-15 × 3-4.5 mm; style and stigma straight or curved, 0.5-2 mm. <b>Seeds</b> elliptic, 1.5-2.5 mm. <b>2n</b>=32, 56, 60.</span><!--

-->{{Treatment/Body
|phenology=Flowering spring–summer (Apr–Jul).
|habitat=Marshes, fens, ditches, wet woods and swamps, thriving best in open or only partly shaded sites
|elevation=0-1500 m
|distribution=Alta.;B.C.;Man.;N.B.;Nfld. and Labr. (Nfld.);N.W.T.;N.S.;Nunavut;Ont.;P.E.I.;Que.;Sask.;Yukon;Alaska;Conn.;Del.;Ill.;Ind.;Iowa;Ky.;Maine;Md.;Mass.;Mich.;Minn.;Mo.;Nebr.;N.H.;N.J.;N.Y.;N.C.;N.Dak.;Ohio;Oreg.;Pa.;R.I.;S.Dak.;Tenn.;Vt.;Va.;Wash.;W.Va.;Wis.;Eurasia.
|discussion=<p><i>Caltha palustris</i> has been divided into different taxa, although plants have been most commonly assigned to two varieties in North America. Typical <i>C. palustris</i> <i></i>var.<i> palustris</i> is characterized by permanently erect, stout stems that do not produce roots and shoots at the nodes after anthesis. The basal leaves are broadly cordate to reniform with coarsely crenate-dentate margins and overlapping basal lobes. Generally more than three flowers occur on a stem. In contrast, <i>C. palustris</i> var. flabellifolia [= <i></i>var.<i> arctica</i>, <i></i>var.<i> radicans</i> (T. F. Forster) Beck] is characterized by stems that sprawl with age and produce roots and shoots at the nodes after anthesis. The basal leaves are ± reniform with denticulate margins, and the basal lobes are widely divergent and do not overlap. Often fewer than three flowers occur on a stem. <i>Caltha palustris</i> var. flabellifolia is distributed locally throughout the range of <i>C. palustris</i> <i></i>var.<i> palustris</i>; it often grows in places with more extreme environmental conditions, such as shorelines, tidal areas, swiftly running streams and rivers, and areas with an arctic climate. Many arctic specimens can be assigned to this variety.</p><!--
--><p>While <i>Caltha palustris</i> <i></i>var.<i> palustris</i> and var. flabellifolia are distinctive in their extremes, they appear to represent elements along a morphologic continuum rather than recognizable taxonomic entities. For example, P.G. Smit (1973) found plants from Point Barrow, Alaska, to be dwarfed, few flowered, and prostrate, while specimens from southern Alaska were robust, many flowered, and erect. Between these two extremes a complete series of intermediates occurs. Based on that evidence, and considering the phenotypic plasticity known to exist in this species, the various specific and infraspecific segregates of <i>C. palustris</i> in North America are not recognized.</p><!--
--><p>Native Americans used various preparations of the roots of <i>Caltha palustris</i> medicinally to treat colds and sores, as an aid in childbirth and to induce vomiting, and as a protection against love charms; infusions of leaves were taken for constipation (D. E. Moerman 1986).</p>
|tables=
|references={{Treatment/Reference
|id=smit1967a
|text=Smit, P. G. 1967. Taxonomical and ecological studies in Caltha palustris L. (preliminary report). Proc. Kon. Ned. Akad. Wetensch. C. 70: 500-510.
}}{{Treatment/Reference
|id=smit1968a
|text=Smit, P. G. 1968. Taxonomical and ecological studies in Caltha palustris L. II. Proc. Kon. Ned. Akad. Wetensch. C. 71: 280-292.
}}{{Treatment/Reference
|id=woodell1971a
|text=Woodell, S. R. J. and M. Kootin-Sanwu. 1971. Intraspecific variation in Caltha palustris. New Phytol. 70: 173-186.
}}
}}<!--

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-->{{#Taxon:
name=Caltha palustris
|authority=Linnaeus
|rank=species
|parent rank=genus
|synonyms=Caltha arctica;Caltha asarifolia;Caltha palustris subsp. arctica;Caltha palustris subsp. asarifolia;Caltha palustris var. arctica;Caltha palustris var. asarifolia;Caltha palustris var. flabellifolia
|basionyms=
|family=Ranunculaceae
|phenology=Flowering spring–summer (Apr–Jul).
|habitat=Marshes, fens, ditches, wet woods and swamps, thriving best in open or only partly shaded sites
|elevation=0-1500 m
|distribution=Alta.;B.C.;Man.;N.B.;Nfld. and Labr. (Nfld.);N.W.T.;N.S.;Nunavut;Ont.;P.E.I.;Que.;Sask.;Yukon;Alaska;Conn.;Del.;Ill.;Ind.;Iowa;Ky.;Maine;Md.;Mass.;Mich.;Minn.;Mo.;Nebr.;N.H.;N.J.;N.Y.;N.C.;N.Dak.;Ohio;Oreg.;Pa.;R.I.;S.Dak.;Tenn.;Vt.;Va.;Wash.;W.Va.;Wis.;Eurasia.
|reference=smit1967a;smit1968a;woodell1971a
|publication title=Sp. Pl.
|publication year=1753
|special status=
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V3/V3_533.xml
|genus=Caltha
|species=Caltha palustris
}}<!--

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