View source for Packera streptanthifolia

{{Treatment/ID
|accepted_name=Packera streptanthifolia
|accepted_authority=(Greene) W. A. Weber & Á. Löve
|publications={{Treatment/Publication
|title=Phytologia
|place=49: 48. 1981
|year=1981
}}
|common_names=Rocky Mountain groundsel
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms={{Treatment/ID/Basionym
|name=Senecio streptanthifolius
|authority=Greene
|rank=species
|publication_title=Erythea
|publication_place=3: 23. 1895
}}
|synonyms={{Treatment/ID/Synonym
|name=Packera streptanthifolia var. borealis
|authority=(Torrey & A. Gray) Trock
|rank=variety
}} {{Treatment/ID/Synonym
|name=Senecio adamsii
|authority=Howell
|rank=species
}} {{Treatment/ID/Synonym
|name=Senecio aureus var. borealis
|authority=Torrey & A. Gray
|rank=variety
}} {{Treatment/ID/Synonym
|name=Senecio cognatus
|authority=Greene
|rank=species
}} {{Treatment/ID/Synonym
|name=Senecio cymbalarioides
|authority=Nuttall
|rank=species
}} {{Treatment/ID/Synonym
|name=Senecio cymbalarioides var. borealis
|authority=(Torrey & A. Gray) Greenman
|rank=variety
}} {{Treatment/ID/Synonym
|name=Senecio cymbalarioides var. streptanthifolius
|authority=(Greene) Greenman
|rank=variety
}} {{Treatment/ID/Synonym
|name=Senecio fulgens
|authority=Rydberg
|rank=species
}} {{Treatment/ID/Synonym
|name=Senecio jonesii
|authority=Rydberg
|rank=species
}} {{Treatment/ID/Synonym
|name=Senecio leonardii
|authority=Rydberg
|rank=species
}} {{Treatment/ID/Synonym
|name=Senecio longipetiolatus
|authority=Rydberg
|rank=species
}} {{Treatment/ID/Synonym
|name=Senecio oödes
|authority=Rydberg
|rank=species
}} {{Treatment/ID/Synonym
|name=Senecio platylobus
|authority=Rydberg
|rank=species
}} {{Treatment/ID/Synonym
|name=Senecio rydbergii
|authority=A. Nelson
|rank=species
}} {{Treatment/ID/Synonym
|name=Senecio streptanthifolius var. borealis
|authority=(Torrey & A. Gray) J. F. Bain
|rank=variety
}} {{Treatment/ID/Synonym
|name=Senecio streptanthifolius var. kluanei
|authority=J. F. Bain
|rank=variety
}} {{Treatment/ID/Synonym
|name=Senecio streptanthifolius var. laetiflorus
|authority=(Greene) J. F. Bain
|rank=variety
}} {{Treatment/ID/Synonym
|name=Senecio streptanthifolius var. oödes
|authority=(Rydberg) J. F. Bain
|rank=variety
}} {{Treatment/ID/Synonym
|name=Senecio streptanthifolius var. rubricaulis
|authority=(Greene) J. F. Bain
|rank=variety
}} {{Treatment/ID/Synonym
|name=Senecio streptanthifolius var. wallowensis
|authority=J. F. Bain
|rank=variety
}} {{Treatment/ID/Synonym
|name=Senecio subcuneatus
|authority=
|rank=species
}} {{Treatment/ID/Synonym
|name=Senecio suksdorfii
|authority=
|rank=species
}} {{Treatment/ID/Synonym
|name=Senecio wardii
|authority=
|rank=species
}}
|hierarchy=Asteraceae;Asteraceae tribe Senecioneae;Packera;Packera streptanthifolia
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Asteraceae]]</div><div class="higher-taxon"><small>tribe</small>[[Asteraceae tribe Senecioneae]]</div><div class="higher-taxon"><small>genus</small>[[Packera]]</div><div class="higher-taxon"><small>species</small>[[Packera streptanthifolia]]</div></div>
|volume=Volume 20
|mention_page=page 570, 572, 573, 577, 593
|treatment_page=page 599
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Perennials,</b> 10–50+ cm; fibrous-rooted (caudices weak to stout, horizontal to suberect). <b>Stems</b> 1 or 2–5, clustered, usually glabrous, sometimes sparsely floccose-tomentose proximally and in leaf axils. <b>Basal</b> leaves (and proximal cauline, relatively thick and turgid) petiolate; blades spatulate to oblanceolate, or ovate to orbiculate, 20–40+ × 10–30+ mm, bases tapering to abruptly contracted or subcordate, margins entire, crenate, dentate, or weakly lobulate (faces usually glabrous, sometimes hairy). <b>Cauline</b> leaves gradually to abruptly reduced (± petiolate or sessile; entire or subentire). <b>Heads</b> 2–20+ in loose, corymbiform or subumbelliform arrays. <b>Peduncles</b> bracteate, glabrous or sparsely tomentose. <b>Calyculi</b> conspicuous. <b>Phyllaries</b> (8–)13 or 21, green (tips sometimes cyanic), 4–7+ mm, glabrous. <b>Ray</b> florets 8 or 13; corolla laminae 5–10 mm. <b>Disc</b> florets 35–60+; corolla tubes 2–4 mm, limbs 2.5–4 mm. <b>Cypselae</b> 1–2.5 mm, glabrous; pappi 3–6 mm. <b>2n</b> = 46, 92.</span><!--

-->{{Treatment/Body
|phenology=Flowering late May–late Aug.
|habitat=Forests, open meadows, valleys, dry to damp and loamy soils
|elevation=1000–3400 m
|distribution=Alta.;B.C.;N.W.T.;Sask.;Yukon;Calif.;Colo.;Idaho;Mont.;Nev.;N.Mex.;Oreg.;Utah;Wash.;Wyo.
|discussion=<p><i>Packera streptanthifolia</i> is widespread and variable throughout the Western Cordillera. It includes weakly defined phases that have been treated as distinct species or as varieties. Characteristics used to delimit those taxa often overlap and are difficult to score; some “phases” grade into each other. Northern populations are sometimes segregated as a distinct taxon (e.g., <i>Senecio</i> streptanthifolia <i></i>var.<i> borealis</i>; J. F. Bain 1988).</p>
|tables=
|references={{Treatment/Reference
|id=bain1985a
|text=Bain, J. F. 1985. Flavonoid variation in the Senecio streptanthifolius complex. Canad. J. Bot. 63: 1685–1690.
}}{{Treatment/Reference
|id=bain1988a
|text=Bain, J. F. 1988. Taxonomy of Senecio streptanthifolius Greene. Rhodora 90: 277–312.
}}
}}<!--

--><!--

-->{{#Taxon:
name=Packera streptanthifolia
|authority=(Greene) W. A. Weber & Á. Löve
|rank=species
|parent rank=genus
|synonyms=Packera streptanthifolia var. borealis;Senecio adamsii;Senecio aureus var. borealis;Senecio cognatus;Senecio cymbalarioides;Senecio cymbalarioides var. borealis;Senecio cymbalarioides var. streptanthifolius;Senecio fulgens;Senecio jonesii;Senecio leonardii;Senecio longipetiolatus;Senecio oödes;Senecio platylobus;Senecio rydbergii;Senecio streptanthifolius var. borealis;Senecio streptanthifolius var. kluanei;Senecio streptanthifolius var. laetiflorus;Senecio streptanthifolius var. oödes;Senecio streptanthifolius var. rubricaulis;Senecio streptanthifolius var. wallowensis;Senecio subcuneatus;Senecio suksdorfii;Senecio wardii
|basionyms=Senecio streptanthifolius
|family=Asteraceae
|phenology=Flowering late May–late Aug.
|habitat=Forests, open meadows, valleys, dry to damp and loamy soils
|elevation=1000–3400 m
|distribution=Alta.;B.C.;N.W.T.;Sask.;Yukon;Calif.;Colo.;Idaho;Mont.;Nev.;N.Mex.;Oreg.;Utah;Wash.;Wyo.
|reference=bain1985a;bain1988a
|publication title=Phytologia
|publication year=1981
|special status=Endemic
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V19-20-21/V20_1343.xml
|tribe=Asteraceae tribe Senecioneae
|genus=Packera
|species=Packera streptanthifolia
}}<!--

-->[[Category:Treatment]][[Category:Packera]]