Flora of North America species comparison

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Packera ionophylla

Tehachapi ragwort
Habit Perennials, 15–30+ cm; taprooted (caudices erect) or rhizomatous (rhizomes branched).
Stems

usually 1, rarely 2–3, clustered, irregularly arachnoid-tomentose to lanate-tomentose 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).
Cauline leaves

gradually reduced (sessile; bractlike, entire).
Peduncles

bracteate, irregularly tomentose.
Ray florets

8–13;

corolla laminae 8–10 mm.
Disc florets

60–75+;

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

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

inconspicuous.
Heads

3–6 in cymiform arrays.
Cypselae

2–2.5 mm, glabrous;

pappi 5–7 mm.
2n

= 46.

Packera ionophylla
Phenology Flowering early Jun–late Aug.
Habitat Dry, rocky slopes, crevices, granitic outcrops, coniferous woodlands
Elevation 1400–3000 m (4600–9800 ft)
Distribution
from FNA
CA
[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.)
Source FNA vol. 20, p. 590.
Parent taxa 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
Synonyms Senecio ionophyllus, Senecio ionophyllus var. intrepidus
Name authority (Greene) W. A. Weber & Á. Löve: Phytologia 49: 47. (1981)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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