View source for Potentilla anserina subsp. yukonensis

{{Treatment/ID
|accepted_name=Potentilla anserina subsp. yukonensis
|accepted_authority=(Hultén) Soják ex Elven & D. F. Murray
|publications={{Treatment/Publication
|title=J. Bot. Res. Inst. Texas
|place=2: 441. 2008
|year=2008
}}
|common_names=Yukon silverweed
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}{{Treatment/ID/Special_status
|code=F
|label=Illustrated
}}
|basionyms={{Treatment/ID/Basionym
|name=Potentilla yukonensis
|authority=Hultén
|rank=species
|publication_title=Fl. Alaska Yukon
|publication_place=6: 1033. 1946,
}}
|synonyms={{Treatment/ID/Synonym
|name=P. anserina var. yukonensis
|authority=(Hultén) B. Boivin
|rank=variety
}} {{Treatment/ID/Synonym
|name=P. egedei subsp. yukonensis
|authority=(Hultén) Hultén
|rank=subspecies
}}
|hierarchy=Rosaceae;Rosaceae subfam. Rosoideae;Rosaceae tribe Potentilleae;Potentilla;Potentilla sect. Pentaphylloides;Potentilla anserina;Potentilla anserina subsp. yukonensis
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Rosaceae]]</div><div class="higher-taxon"><small>subfamily</small>[[Rosaceae subfam. Rosoideae]]</div><div class="higher-taxon"><small>tribe</small>[[Rosaceae tribe Potentilleae]]</div><div class="higher-taxon"><small>genus</small>[[Potentilla]]</div><div class="higher-taxon"><small>section</small>[[Potentilla sect. Pentaphylloides]]</div><div class="higher-taxon"><small>species</small>[[Potentilla anserina]]</div><div class="higher-taxon"><small>subspecies</small>[[Potentilla anserina subsp. yukonensis]]</div></div>
|volume=Volume 9
|mention_page=page 127, 128
|treatment_page=page 129
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Stems </b>sparsely to densely hairy, rarely glabrous. <b>Leaves</b> horizontal to erect, 4–20 cm, rarely longer; leaflets (4–)5–8(–9) per side, separate, rarely overlapping, teeth (3–)5–9 per side, teeth apex acute to acuminate (more sharply than in other subspp.), surfaces: abaxial with long hairs common to abundant, on and between veins, cottony-crisped hairs dense, adaxial sparsely to densely hairy, rarely glabrous. <b>Flowers</b> 1.2–2.2 cm diam.; epicalyx bractlets usually linear to elliptic, longer than sepals, rarely subequal, often 2-fid or dentate; hypanthium turbinate (as deep as wide) in fruit; petals not overlapping, elliptic; carpels 20–60. <b>Achenes</b> with dorsal groove.</span><!--

-->{{Treatment/Body
|phenology=Flowering summer.
|habitat=Dry sandy and gravelly stream- and lakeshores, dry pastures, open dry pine forests, inland alkaline habitats, road verges and gravelly sites
|elevation=0–800 m
|distribution=Alta.;Man.;N.W.T.;Sask.;Yukon;Alaska.
|discussion=<p>Subspecies yukonensis seems to be the predominant subspecies in interior northwestern Canada and Alaska and is perhaps the only native race in interior Northwest Territories, Yukon, and Alaska. The range is probably larger than reported here. While the flowers of other subspecies generally remain erect, those of <i></i>subsp.<i> yukonensis</i> tend to nod in fruit.</p><!--
--><p>A. Rousi (1965) suggested that there might be an additional, densely hairy subspecies (undescribed) in western North America. The northern plants observed by the authors mostly share the distinctive hypanthium character with <i></i>subsp.<i> yukonensis</i> and are assigned here.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Potentilla anserina subsp. yukonensis
|authority=(Hultén) Soják ex Elven & D. F. Murray
|rank=subspecies
|parent rank=species
|synonyms=P. anserina var. yukonensis;P. egedei subsp. yukonensis
|basionyms=Potentilla yukonensis
|family=Rosaceae
|phenology=Flowering summer.
|habitat=Dry sandy and gravelly stream- and lakeshores, dry pastures, open dry pine forests, inland alkaline habitats, road verges and gravelly sites
|elevation=0–800 m
|distribution=Alta.;Man.;N.W.T.;Sask.;Yukon;Alaska.
|reference=None
|publication title=J. Bot. Res. Inst. Texas
|publication year=2008
|special status=Endemic;Illustrated
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V9/V9_183.xml
|subfamily=Rosaceae subfam. Rosoideae
|tribe=Rosaceae tribe Potentilleae
|genus=Potentilla
|section=Potentilla sect. Pentaphylloides
|species=Potentilla anserina
|subspecies=Potentilla anserina subsp. yukonensis
}}<!--

-->[[Category:Treatment]][[Category:Potentilla anserina]]