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Compilation
Packera werneriifolia

13 Images see all

Syntype of Senecio muirii Greenman [family ASTERACEAE]
Isotype of Senecio scaposus A.Nelson [family COMPOSITAE]
Isotype of Packera werneriifolia (A. Gray) W.A. Weber & Á. Löve [family ASTERACEAE]
Isotype of Senecio aureus L. var. werneriifolius A.Gray [family ASTERACEAE]
Syntype of Senecio muirii Greenman [family ASTERACEAE]
Isotype of Packera werneriifolia (A. Gray) W.A. Weber & Á. Löve [family ASTERACEAE]
Isotype of Senecio aureus L. var. alpinus A.Gray [family ASTERACEAE]
Isotype of Senecio scaposus A. Nelson [family ASTERACEAE]
Isotype of Senecio petraeus Klatt [family ASTERACEAE]
Packera werneriifolia (A. Gray) W.A. Weber & Á. Löve [family COMPOSITAE]
Packera werneriifolia (A.Gray) W.A.Weber & Á.Löve [family COMPOSITAE]
Packera werneriifolia (A. Gray) W.A. Weber & Á. Löve [family COMPOSITAE]
Packera werneriifolia (A. Gray) W.A. Weber & Á. Löve [family COMPOSITAE]
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Name

Identification
Senecio scaposus A.Nelson [family COMPOSITAE ] Verified by Not on sheet, Packera werneriifolia (A.Gray) Weber & Löve [family COMPOSITAE ] (stored under name); Verified by Not on sheet, Isotype of Senecio scaposus A.Nelson [family COMPOSITAE ] Verified by Not on sheet,
Related name
  • Packera werneriifolia
  • Senecio perennans
  • Senecio werneriaefolius
  • Senecio aureus
  • Senecio scaposus
  • Senecio pentodonta
  • Senecio saxosus
Common name
  • Hoary groundsel, Flora of North America Vol. 20

Flora

Entry for Packera werneriifolia (A. Gray) W. A. Weber & Á. Löve [family COMPOSITAE]
Herbarium
Flora of North America (FNA)
Collection
Flora of North America
Resource Type
Reference Sources
Entry From
Flora of North America, Vol 20,
Names
Packera werneriifolia (A. Gray) W. A. Weber & Á. Löve [family COMPOSITAE], Phytologia, 49: 48. 1981
Senecio aureus Linnaeus var. werneriifolius A. Gray [family COMPOSITAE], Proc. Acad. Nat. Sci. Philadelphia, 15: 68. 1864 (as werneriaefolius)
Senecio alpicola Rydberg [family COMPOSITAE]
Senecio molinarius Greenman [family COMPOSITAE]
Senecio muirii Greenman [family COMPOSITAE]
Senecio perennans A. Nelson [family COMPOSITAE]
Senecio petraeus Klatt [family COMPOSITAE]
Senecio petrocallis Greene [family COMPOSITAE]
Senecio petrophilus Greene [family COMPOSITAE]
Senecio saxosus Klatt [family COMPOSITAE]
Senecio scaposus A. Nelson [family COMPOSITAE]
Senecio werneriifolius (A. Gray) A. Gray [family COMPOSITAE]
Past names
werneriaefolia
Treatment Author(s)
Debra K. Trock
Information
Perennials, 7–15+ cm; ± rhizomatous (rhizomes branched, sometimes densely crowded). Stems 1 or 3–5, clustered (often scapiform), usually floccose, lanate-tomentose, or canescent, sometimes glabrate. Basal leaves (either of two forms): usually (1) sessile, sometimes petiolate; blades narrowly lanceolate to elliptic, 15–40+ × 5–25 mm, bases tapering, margins entire or dentate toward apices (often revolute), sometimes (2) petiolate; blades ovate to orbiculate, 10–20 × 5–15 mm, bases tapering to abruptly contracted, margins entire or wavy, sometimes dentate toward apices. Cauline leaves abruptly reduced (bractlike). Heads1–5(–8) in cymiform to subumbelliform arrays. Peduncles inconspicuously bracteate, glabrous or densely hairy. Calyculi conspicuous (bractlets often cyanic). Phyllaries 13 or 21, green (tips sometimes cyanic), 4–10 mm, glabrous or hairy. Ray florets 0, 8, or 13; corolla laminae 5–10 mm. Disc florets 30–50+; corolla tubes 2.5–3.5 mm, limbs 3–4 mm. Cypselae 1.5–2 mm, glabrous; pappi 5–6 mm. 2n = 44, 46.
Phenology
jun-aug (summer)
Altitude range
2400–3700 m;
Distribution
USA Ariz.USA Calif.USA Colo.USA IdahoUSA Nev.USA N.Mex.USA UtahUSA Wyo.
Discussion
Packera werneriifolia is morphologically variable; it occurs throughout the central Rockies and, sporadically, as far west as the Sierra Nevada. Leaf morphology varies from ovate, elliptic, or narrowly elliptic in the Rockies to narrow with revolute margins in California and Arizona. All specimens are characteristically scapiform.

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