View source for Ranunculus acris

{{Treatment/ID
|accepted_name=Ranunculus acris
|accepted_authority=Linnaeus
|publications={{Treatment/Publication
|title=Sp. Pl.
|place=1: 554. 1753
|year=1753
}}
|common_names=Renoncule âcre;bouton d'or
|special_status={{Treatment/ID/Special_status
|code=F
|label=Selected by author to be illustrated
}}{{Treatment/ID/Special_status
|code=W
|label=Weedy
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Ranunculus acris var. latisectus
|authority=Beck
}}
|hierarchy=Ranunculaceae;Ranunculus;Ranunculus subg. Ranunculus;Ranunculus sect. Ranunculus;Ranunculus acris
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Ranunculaceae]]</div><div class="higher-taxon"><small>genus</small>[[Ranunculus]]</div><div class="higher-taxon"><small>subgenus</small>[[Ranunculus subg. Ranunculus]]</div><div class="higher-taxon"><small>section</small>[[Ranunculus sect. Ranunculus]]</div><div class="higher-taxon"><small>species</small>[[Ranunculus acris]]</div></div>
|volume=Volume 3
|mention_page=
|treatment_page=
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Stems </b>erect from short caudex or rhizome, never rooting nodally, hispid, strigose, or glabrous, base not bulbous. <b>Roots</b> never tuberous. <b>Basal</b> leaf blades pentagonal in outline, deeply 3-5-parted, 1.8-5.2 × 2.7-9.8 cm, segments 1-2×-lobed or -parted, ultimate segments narrowly elliptic or oblong to lanceolate, margins toothed or lobulate, apex acute to rounded. <b>Flowers</b>: receptacle glabrous; sepals spreading, 4-6(-9) × 2-5 mm, hispid; petals 5, yellow, 8-11(-17) × 7-13 mm. <b>Heads</b> of achenes globose, 5-7(-10) mm wide; achenes 2-3 × 1.8-2.4 mm, glabrous, margin forming narrow rib 0.1-0.2 mm wide; beak persistent, deltate, usually with tip short or long, straight or curved, subulate, 0.2-1 mm. <b>2n</b> = 14.</span><!--

-->{{Treatment/Body
|phenology=Flowering spring–summer (May–Sep).
|habitat=Meadows, stream banks, roadsides, and old fields
|elevation=0-2300 m
|distribution=Largely Greenland;St. Pierre and Miquelon;Alta.;B.C.;Man.;N.B.;Nfld.;N.W.T.;N.S.;Ont.;P.E.I.;Que.;Sask.;Ala.;Alaska;Ariz.;Calif.;Conn.;Del.;D.C.;Ga.;Idaho;Ill.;Ind.;Iowa;Kans.;Ky.;Maine;Md.;Mass.;Mich.;Minn.;Mo.;Mont.;Nebr.;Nev.;N.H.;N.J.;N.Y.;N.C.;N.Dak.;Ohio;Oreg.;Pa.;R.I.;S.C.;S.Dak.;Tenn.;Utah;Vt.;Va.;Wash.;W.Va.;Wis.;Wyo.;South America;Eurasia;Pacific Islands;Australia.
|discussion=<p><i>Ranunculus acris</i> is variable in form and division of leaves, size of achene beak, and form of indument on the proximal stem. Most North American plants are weedy and have poorly differentiated caudices; these forms probably were introduced from Eurasia. Rhizomatous plants with large flowers (parenthetic measurements above) found in the Aleutian Islands of Alaska and in Greenland are probably native. Aleutian populations of this form have been called <i>R. acris</i> <i></i></i>var.<i><i> frigidus</i> Regel or R. grandis Honda var. austrokurilensis (Tatewaki) H. Hara. Both names were originally applied to Asiatic plants, and their applicability to American specimens is open to question.</p><!--
--><p>Some Native American tribes used <i>Ranunculus acris</i> as an analgesic, a dermatological or oral aid, an antidiarrheal, antihermorrhagic, and a sedative (D. E. Moerman 1986).</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Ranunculus acris
|author=
|authority=Linnaeus
|rank=species
|parent rank=section
|synonyms=Ranunculus acris var. latisectus
|basionyms=
|family=Ranunculaceae
|phenology=Flowering spring–summer (May–Sep).
|habitat=Meadows, stream banks, roadsides, and old fields
|elevation=0-2300 m
|distribution=Largely Greenland;St. Pierre and Miquelon;Alta.;B.C.;Man.;N.B.;Nfld.;N.W.T.;N.S.;Ont.;P.E.I.;Que.;Sask.;Ala.;Alaska;Ariz.;Calif.;Conn.;Del.;D.C.;Ga.;Idaho;Ill.;Ind.;Iowa;Kans.;Ky.;Maine;Md.;Mass.;Mich.;Minn.;Mo.;Mont.;Nebr.;Nev.;N.H.;N.J.;N.Y.;N.C.;N.Dak.;Ohio;Oreg.;Pa.;R.I.;S.C.;S.Dak.;Tenn.;Utah;Vt.;Va.;Wash.;W.Va.;Wis.;Wyo.;South America;Eurasia;Pacific Islands;Australia.
|introduced=true
|reference=None
|publication title=Sp. Pl.
|publication year=1753
|special status=Selected by author to be illustrated;Weedy
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V3/V3_215.xml
|genus=Ranunculus
|subgenus=Ranunculus subg. Ranunculus
|section=Ranunculus sect. Ranunculus
|species=Ranunculus acris
}}<!--

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