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Packera streptanthifolia (Greene) W.A. Weber & Á. Löve  

No occurrences found

Family: Asteraceae
Rocky Mountain groundsel
[Packera cymbalarioides (Buek) W.A. Weber & Á. Löve, morePackera oodes (Rydb.) W.A. Weber, Packera streptanthifolia var. rubricaulis (Greene) Dorn, Senecio acutidens Rydb., Senecio adamsii Howell, Senecio aureus var. borealis Torr. & A.Gray, Senecio cymbalarioides H.Buek, Senecio cymbalarioides var. borealis (Torr. & A.Gray) Greenm., Senecio cymbalarioides var. suksdorfii (Greenm.) M.B. Peck, Senecio fulgens Rydb., Senecio jonesii Rydb., Senecio laetiflorus Greene, Senecio leonardii Rydb., Senecio longipetiolatus Rydb., Senecio oodes Rydb., Senecio pammelii Greenm., Senecio platylobus Rydb., Senecio rubricaulis Greene, Senecio streptanthifolius Greene, Senecio streptanthifolius var. borealis (T. & G.) J.F. Bain, Senecio streptanthifolius var. kluanei J.F. Bain, Senecio streptanthifolius var. laetiflorus (Greene) J.F. Bain, Senecio streptanthifolius var. oodes (Rydb.) J.F. Bain, Senecio streptanthifolius var. rubricaulis (Greene) J.F. Bain, Senecio streptanthifolius var. wallowensis J.F. Bain, Senecio subcuneatus Rydb., Senecio suksdorfii Greenm., Senecio wardii Greene]
Packera streptanthifolia image
Patrick Alexander
  • FNA
  • Resources
Debra K. Trock in Flora of North America (vol. 20)
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. Flowering late May-late Aug. Forests, open meadows, valleys, dry to damp and loamy soils; 1000-3400 m; Alta., B.C., N.W.T., Sask., Yukon; Calif., Colo., Idaho, Mont., Nev., N.Mex., Oreg., Utah, Wash., Wyo. 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).

Packera streptanthifolia
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Packera streptanthifolia image
Patrick Alexander
Packera streptanthifolia image
Patrick Alexander
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