Compilation
Senecio fendleri

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Name

Identification
Senecio fendleri A.Gray [family ASTERACEAE ] (stored under name); Verified by Not on Sheet,
Related name
  • Packera fendleri
  • Senecio nelsonii
  • Senecio fendleri
Common name
  • Fendler’s ragwort, Flora of North America Vol. 20
  • White Mountain ragwort, Flora of North America Vol. 20

Flora

Entry for Packera cynthioides (Greene) 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 cynthioides (Greene) W. A. Weber & Á. Löve [family COMPOSITAE], Phytologia, 49: 46. 1981
Senecio cynthioides Greene [family COMPOSITAE], Leafl. Bot. Observ. Crit., 1: 212. 1906
Senecio fendleri A. Gray var. subintegra Greene [family COMPOSITAE]
Senecio wrightii Greenman [family COMPOSITAE]
Treatment Author(s)
Debra K. Trock
Information
Perennials, 20–40+ cm; rhizomatous (rhizomes horizontal to erect). Stems 1 or 2–3, clustered, densely lanate-tomentose or canescent, tufts of arachnoid tomentum in leaf axils, or glabrescent. Basal leaves (thick, leathery) petiolate; blades narrowly lanceolate or oblanceolate, 25–100+ × 5–20 mm, bases tapering, margins entire, subentire, dentate, or wavy (adaxial faces early glabrescent). Cauline leaves gradually reduced (sessile; lanceolate to oblanceolate, entire or wavy). Heads 10–30+ in open or congested, cymiform arrays. Peduncles 0 (or relatively reduced, then densely tomentose). Calyculi inconspicuous (bractlets red-tipped). Phyllaries (8–)13, green (tips red), 3–6 mm, densely tomentose proximally, glabrate distally. Ray florets (5–)8; corolla laminae 8–10+ mm. Disc florets 35–45+; corolla tubes 2.5–3.5 mm, limbs 3.5–4.5 mm. Cypselae 1–1.5 mm, glabrous; pappi 5–6 mm. 2n = 46.
Phenology
jul-aug (summer), sep (fall)
Altitude range
2200–2900 m;
Distribution
USA N.Mex.
Discussion
Packera cynthioides blooms later than other Packera species at the same latitudes. It is noted by collectors as usually growing on north- or west-facing slopes in limestone-derived soils. Its cauline leaves are well developed and held at a shallow angle to the stem, giving the plant a more “leafy” aspect than other members of the genus.

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