Packera fendleri |
Packera malmstenii |
|
---|---|---|
Fendler's ragwort, notchleaf groundsel |
Podunk ragwort |
|
Habit | Perennials, 10–40+ cm; rhizomatous (rhizomes horizontal to suberect, branched). | Perennials, 8–15+ cm; rhizomatous (rhizomes relatively slender, branched). |
Stems | 1 or multiple (crowded to subcespitose), floccose-tomentose or glabrescent. |
1 or 3–5, loosely clustered, glabrous or bases and leaf axils tomentose. |
Basal leaves | petiolate; blades lanceolate to oblanceolate, 30–60+ × 10–30+ mm, bases tapering, margins shallowly, evenly pinnatifid to pinnatisect or wavy (adaxial faces floccose-tomentose or subglabrescent). |
(and proximal cauline, relatively thick and turgid) petiolate (petioles sometimes winged); blades elliptic-ovate or suborbiculate to spatulate, 15–25 × 5–20 mm, bases tapering, margins entire or dentate (at apices). |
Cauline leaves | gradually reduced (sessile; lanceolate to oblanceolate, pinnatisect to wavy). |
abruptly reduced (becoming sessile, bractlike). |
Peduncles | bracteate, densely to irregularly floccose. |
ebracteate, glabrous. |
Ray florets | 6–8+; corolla laminae 5–7 mm. |
(0) or 8–13; corolla laminae 7–9 mm. |
Disc florets | 30–40+; corolla tubes 2.5–3 mm, limbs, 2.5–3.5 mm. |
35–50+; corolla tubes 2–3 mm, limbs 2.5–3.5 mm. |
Phyllaries | 13, green, 5–7 mm, floccose proximally to glabrescent distally. |
13, cyanic, 8–9 mm, glabrous or loosely tomentose proximally. |
Calyculi | 0 or inconspicuous (bractlets red-tinged). |
inconspicuous. |
Heads | 6–25+ in open or compact, corymbiform arrays. |
1–2(–4). |
Cypselae | 2.5–3 mm, glabrous; pappi 4–5 mm. |
1–2 mm, glabrous; pappi 3–4.5 mm. |
2n | = 46. |
|
Packera fendleri |
Packera malmstenii |
|
Phenology | Flowering late May–early Oct. | Flowering mid Jul–early Aug. |
Habitat | Steep slopes, loose, dry rocky or gravelly soils, along streams, open forests, disturbed sites | Steep talus of limestone-derived slopes at or above timberline |
Elevation | 1600–3200 m (5200–10500 ft) | 2600–3600 m (8500–11800 ft) |
Distribution |
CO; NM; WY
|
ID; NV; UT |
Discussion | Packera fendleri is abundant, almost weedy in the southern Rocky Mountains. It thrives in a wide range of elevations and in a wide variety of habitats; flowering times vary. It frequently grows in close association with other species of Packera and may hybridize with them. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Of conservation concern. Packera malmstenii is poorly known; it has obvious affinities with P. werneriifolia in both morphology and habitat preference. Its herbage tends to be thick and turgid. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 20, p. 587. | FNA vol. 20, p. 591. |
Parent taxa | Asteraceae > tribe Senecioneae > Packera | Asteraceae > tribe Senecioneae > Packera |
Sibling taxa | ||
Synonyms | Senecio fendleri, Senecio canovirens, Senecio fendleri var. molestus, Senecio nelsonii, Senecio rosulatus, Senecio salicinus | Senecio malmstenii |
Name authority | (A. Gray) W. A. Weber & Á. Löve: Phytologia 49: 46. (1981) | (S. F. Blake ex Tidestrom) Kartesz: in J. T. Kartesz and C. A. Meacham, Synth. N. Amer. Fl., nomencl. innov. 21. (1999) |
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