View source for Ranunculus hyperboreus

{{Treatment/ID
|accepted_name=Ranunculus hyperboreus
|accepted_authority=Rottbøll
|publications={{Treatment/Publication
|title=Skr. Kiøbenhavnske Selsk. Laerd. Elsk.
|place=10: 458. 1770
|year=1770
}}
|common_names=Renoncule hyperboréale
|special_status={{Treatment/ID/Special_status
|code=F
|label=Illustrated
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Ranunculus hyperboreus subsp. arnellii
|authority=Scheutz
|rank=subspecies
}} {{Treatment/ID/Synonym
|name=Ranunculus hyperboreus subsp. intertextus
|authority=(Greene) B. M. Kapoor & A. Löve
|rank=subspecies
}} {{Treatment/ID/Synonym
|name=Ranunculus hyperboreus var. samojedorum
|authority=(Ruprecht) Perfiljev
|rank=variety
}} {{Treatment/ID/Synonym
|name=Ranunculus hyperboreus var. tricrenatus
|authority=Ruprecht
|rank=variety
}} {{Treatment/ID/Synonym
|name=Ranunculus hyperboreus var. turquetilianus
|authority=Polunin
|rank=variety
}} {{Treatment/ID/Synonym
|name=Ranunculus natans var. intertextus
|authority=(Greene) L. D. Benson
|rank=variety
}}
|hierarchy=Ranunculaceae;Ranunculus;Ranunculus subg. Ranunculus;Ranunculus sect. Hecatonia;Ranunculus hyperboreus
|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. Hecatonia]]</div><div class="higher-taxon"><small>species</small>[[Ranunculus hyperboreus]]</div></div>
|volume=Volume 3
|mention_page=
|treatment_page=
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Stems </b>prostrate, glabrous, rooting nodally. <b>Leaves</b>: basal leaves absent, cauline leaf blades reniform to broadly flabellate, deeply 3-lobed or 3-parted, 0.3-1.2 × 0.5-2.1 cm, base obtuse to cordate, lobes undivided or lateral lobes cleft, terminal segment entire or distally crenulate, apex rounded. <b>Flowers</b>: receptacle glabrous; sepals 3-4, spreading or reflexed from base, 2-4 × 1-3 mm, glabrous; petals 3-4, 2-4 × 1-3 mm; nectary on petal surface, scale poorly developed and forming crescent-shaped ridge surrounding but not covering nectary; style 0.1-0.2 mm. <b>Heads</b> of achenes globose or short-ovoid, 3-5 × 2-5 mm; achenes 1-1.4 × 0.8-1.2 mm, glabrous; beak linear, curved, 0.1-0.4 mm. <b>2n</b> = 32.</span><!--

-->{{Treatment/Body
|phenology=Flowering late spring–summer (Jun–Aug).
|habitat=Floating in shallow water or stranded on exposed mud at margins of streams and ponds and open wet soil and marshes, in tundra or boreal or subalpine forest
|elevation=0-3400 m
|distribution=Greenland;Alta.;B.C.;Man.;Nfld. and Labr. (Nfld.);N.W.T.;Ont.;Que.;Sask.;Yukon;Alaska;Colo.;Idaho;Mont.;Nev.;Utah;Wyo.;Eurasia.
|discussion=<p>Specimens of <i>Ranunculus hyperboreus</i> from the central and southern Rocky Mountains have the leaves always cordate and the fruiting heads always 4-5 mm; they have been separated as <i>R. hyperboreus</i> subsp. intertextus. Although Arctic specimens are more variable, they often have shallowly cordate leaf bases and equally large heads of achenes, so segregation of the subspecies seems inappropriate.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Ranunculus hyperboreus
|authority=Rottbøll
|rank=species
|parent rank=section
|synonyms=Ranunculus hyperboreus subsp. arnellii;Ranunculus hyperboreus subsp. intertextus;Ranunculus hyperboreus var. samojedorum;Ranunculus hyperboreus var. tricrenatus;Ranunculus hyperboreus var. turquetilianus;Ranunculus natans var. intertextus
|basionyms=
|family=Ranunculaceae
|phenology=Flowering late spring–summer (Jun–Aug).
|habitat=Floating in shallow water or stranded on exposed mud at margins of streams and ponds and open wet soil and marshes, in tundra or boreal or subalpine forest
|elevation=0-3400 m
|distribution=Greenland;Alta.;B.C.;Man.;Nfld. and Labr. (Nfld.);N.W.T.;Ont.;Que.;Sask.;Yukon;Alaska;Colo.;Idaho;Mont.;Nev.;Utah;Wyo.;Eurasia.
|reference=None
|publication title=Skr. Kiøbenhavnske Selsk. Laerd. Elsk.
|publication year=1770
|special status=Illustrated
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V3/V3_537.xml
|genus=Ranunculus
|subgenus=Ranunculus subg. Ranunculus
|section=Ranunculus sect. Hecatonia
|species=Ranunculus hyperboreus
}}<!--

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