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Tehachapi ragwort

White Mountain ragwort

Habit Perennials, 15–30+ cm; taprooted (caudices erect) or rhizomatous (rhizomes branched). Perennials, 20–40+ cm; rhizomatous (rhizomes horizontal to erect).
Stems

usually 1, rarely 2–3, clustered, irregularly arachnoid-tomentose to lanate-tomentose or glabrescent.

1 or 2–3, clustered, densely lanate-tomentose or canescent, tufts of arachnoid tomentum in leaf axils, or glabrescent.

Basal leaves

(and proximal cauline, relatively turgid) petiolate;

blades broadly ovate or lyrate (± pinnately lobed, lateral lobes 1–3 pairs, smaller than terminals), 10–30+ × 10–20+ mm, bases tapering to cuneate, ultimate margins subentire or crenate to coarsely dentate (abaxial faces tomentose).

(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; bractlike, entire).

gradually reduced (sessile; lanceolate to oblanceolate, entire or wavy).

Peduncles

bracteate, irregularly tomentose.

0 (or relatively reduced, then densely tomentose).

Ray florets

8–13;

corolla laminae 8–10 mm.

(5–)8;

corolla laminae 8–10+ mm.

Disc florets

60–75+;

corolla tubes 2.5–4 mm, limbs 3.5–5 mm.

35–45+;

corolla tubes 2.5–3.5 mm, limbs 3.5–4.5 mm.

Phyllaries

(8–)13 or 21, green, 7–10+ mm, densely tomentose proximally, glabrescent distally (tips hair-tufted).

(8–)13, green (tips red), 3–6 mm, densely tomentose proximally, glabrate distally.

Calyculi

inconspicuous.

inconspicuous (bractlets red-tipped).

Heads

3–6 in cymiform arrays.

10–30+ in open or congested, cymiform arrays.

Cypselae

2–2.5 mm, glabrous;

pappi 5–7 mm.

1–1.5 mm, glabrous;

pappi 5–6 mm.

2n

= 46.

= 46.

Packera ionophylla

Packera cynthioides

Phenology Flowering early Jun–late Aug. Flowering late Jul–mid Sep.
Habitat Dry, rocky slopes, crevices, granitic outcrops, coniferous woodlands Loose rocky soils, steep slopes, subalpine and pine-juniper forests
Elevation 1400–3000 m (4600–9800 ft) 2200–2900 m (7200–9500 ft)
Distribution
from FNA
CA
[WildflowerSearch map]
[BONAP county map]
from FNA
NM
[WildflowerSearch map]
[BONAP county map]
Discussion

Of conservation concern.

Packera ionophylla is known only from the San Bernardino, San Gabriel, and Tehachapi mountains and a population on Alamo Mountain in eastern Ventura County.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

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.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 20, p. 590. FNA vol. 20, p. 583.
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. fendleri, P. flettii, P. franciscana, P. ganderi, P. glabella, P. greenei, P. hartiana, P. hesperia, P. hyperborealis, P. indecora, 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. 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. 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
Synonyms Senecio ionophyllus, Senecio ionophyllus var. intrepidus Senecio cynthioides, Senecio fendleri var. subintegra, Senecio wrightii
Name authority (Greene) W. A. Weber & Á. Löve: Phytologia 49: 47. (1981) (Greene) W. A. Weber & Á. Löve: Phytologia 49: 46. (1981)
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