Difference between revisions of "Packera streptanthifolia"

(Greene) W. A. Weber & Á. Löve

Phytologia 49: 48. 1981.

Common names: Rocky Mountain groundsel
Basionym: Senecio streptanthifolius Greene Erythea 3: 23. 1895
Synonyms: Packera streptanthifolia var. borealis (Torrey & A. Gray) Trock Senecio adamsii Howell Senecio aureus var. borealis Torrey & A. Gray Senecio cognatus Greene Senecio cymbalarioides Nuttall Senecio cymbalarioides var. borealis (Torrey & A. Gray) Greenman Senecio cymbalarioides var. streptanthifolius (Greene) Greenman Senecio fulgens Rydberg Senecio jonesii Rydberg Senecio leonardii Rydberg Senecio longipetiolatus Rydberg Senecio oödes Rydberg Senecio platylobus Rydberg Senecio rydbergii A. Nelson Senecio streptanthifolius var. borealis (Torrey & A. Gray) J. F. Bain Senecio streptanthifolius var. kluanei J. F. Bain Senecio streptanthifolius var. laetiflorus (Greene) J. F. Bain Senecio streptanthifolius var. oödes (Rydberg) J. F. Bain Senecio streptanthifolius var. rubricaulis (Greene) J. F. Bain Senecio streptanthifolius var. wallowensis J. F. Bain Senecio subcuneatus Senecio suksdorfii Senecio wardii
Treatment appears in FNA Volume 20. Treatment on page 599. Mentioned on page 570, 572, 573, 577, 593.
FNA>Volume Importer
FNA>Volume Importer
Line 124: Line 124:
 
|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>
 
|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=
 
|tables=
|references=
+
|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.
 +
}}
 
}}<!--
 
}}<!--
  
Line 141: Line 147:
 
|elevation=1000–3400 m
 
|elevation=1000–3400 m
 
|distribution=Alta.;B.C.;N.W.T.;Sask.;Yukon;Calif.;Colo.;Idaho;Mont.;Nev.;N.Mex.;Oreg.;Utah;Wash.;Wyo.
 
|distribution=Alta.;B.C.;N.W.T.;Sask.;Yukon;Calif.;Colo.;Idaho;Mont.;Nev.;N.Mex.;Oreg.;Utah;Wash.;Wyo.
|reference=None
+
|reference=bain1985a;bain1988a
 
|publication title=Phytologia
 
|publication title=Phytologia
 
|publication year=1981
 
|publication year=1981
 
|special status=
 
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/eaa6e58056e40c9ef614d8f47aea294977a1a5e9/coarse_grained_fna_xml/V19-20-21/V20_1343.xml
+
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V19-20-21/V20_1343.xml
 
|tribe=Asteraceae tribe Senecioneae
 
|tribe=Asteraceae tribe Senecioneae
 
|genus=Packera
 
|genus=Packera

Revision as of 20:25, 16 December 2019

Perennials, 10–50+ cm; fibrous-rooted (caudices weak to stout, horizontal to suberect). Stems 1 or 2–5, clustered, usually glabrous, sometimes sparsely floccose-tomentose proximally and in leaf axils. Basal 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). Cauline leaves gradually to abruptly reduced (± petiolate or sessile; entire or subentire). Heads 2–20+ in loose, corymbiform or subumbelliform arrays. Peduncles bracteate, glabrous or sparsely tomentose. Calyculi conspicuous. Phyllaries (8–)13 or 21, green (tips sometimes cyanic), 4–7+ mm, glabrous. Ray florets 8 or 13; corolla laminae 5–10 mm. Disc florets 35–60+; corolla tubes 2–4 mm, limbs 2.5–4 mm. Cypselae 1–2.5 mm, glabrous; pappi 3–6 mm. 2n = 46, 92.


Phenology: Flowering late May–late Aug.
Habitat: Forests, open meadows, valleys, dry to damp and loamy soils
Elevation: 1000–3400 m

Distribution

Loading map...
Created with Raphaël 2.2.0
V20-1343-distribution-map.gif

Alta., B.C., N.W.T., Sask., Yukon, Calif., Colo., Idaho, Mont., Nev., N.Mex., Oreg., Utah, Wash., Wyo.

Discussion

Packera streptanthifolia 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., Senecio streptanthifolia var. borealis; J. F. Bain 1988).

Lower Taxa

None.
... more about "Packera streptanthifolia"
Debra K. Trock +
- Greene W. A. Weber & Á. Löve +
Senecio streptanthifolius +
Rocky Mountain groundsel +
Alta. +, B.C. +, N.W.T. +, Sask. +, Yukon +, Calif. +, Colo. +, Idaho +, Mont. +, Nev. +, N.Mex. +, Oreg. +, Utah +, Wash. +  and Wyo. +
1000–3400 m +
Forests, open meadows, valleys, dry to damp and loamy soils +
Flowering late May–late Aug. +
bain1985a +  and bain1988a +
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 +  and Senecio wardii +
Packera streptanthifolia +
species +