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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
from FNA
CO; NM; WY
[WildflowerSearch map]
[BONAP county map]
from FNA
ID; NV; UT
[BONAP county map]
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
P. anonyma, P. antennariifolia, P. aurea, P. bernardina, P. bolanderi, P. breweri, P. cana, P. cardamine, P. castoreus, P. clevelandii, P. contermina, P. crocata, P. cymbalaria, P. cynthioides, P. debilis, P. dimorphophylla, P. eurycephala, P. flettii, P. franciscana, P. ganderi, P. glabella, P. greenei, P. hartiana, P. hesperia, P. hyperborealis, P. indecora, P. ionophylla, P. layneae, P. macounii, P. malmstenii, P. millefolium, P. millelobata, P. multilobata, P. musiniensis, P. neomexicana, P. obovata, P. ogotorukensis, P. pauciflora, P. paupercula, P. plattensis, P. porteri, P. pseudaurea, P. quercetorum, P. sanguisorboides, P. schweinitziana, P. spellenbergii, P. streptanthifolia, P. subnuda, P. tampicana, P. texensis, P. tomentosa, P. tridenticulata, P. werneriifolia
P. anonyma, P. antennariifolia, P. aurea, P. bernardina, P. bolanderi, P. breweri, P. cana, P. cardamine, P. castoreus, P. clevelandii, P. contermina, P. crocata, P. cymbalaria, P. cynthioides, P. debilis, P. dimorphophylla, P. eurycephala, P. fendleri, P. flettii, P. franciscana, P. ganderi, P. glabella, P. greenei, P. hartiana, P. hesperia, P. hyperborealis, P. indecora, P. ionophylla, P. layneae, P. macounii, P. millefolium, P. millelobata, P. multilobata, P. musiniensis, P. neomexicana, P. obovata, P. ogotorukensis, P. pauciflora, P. paupercula, P. plattensis, P. porteri, P. pseudaurea, P. quercetorum, P. sanguisorboides, P. schweinitziana, P. spellenbergii, P. streptanthifolia, P. subnuda, P. tampicana, P. texensis, P. tomentosa, P. tridenticulata, P. werneriifolia
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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