Flora of North America species comparison

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Packera crocata

saffron ragwort
Habit Perennials, 20–60+ cm; perennating bases horizontal to ascending (relatively long and stout).
Stems

usually 1, rarely 2–3, clustered, glabrous.
Basal leaves

(and proximal cauline) petiolate (petioles narrow);

blades narrowly lanceolate or ovate to oblong-ovate, 20–60+ × 10–40+ mm, bases abruptly contracted to tapering, margins subentire to crenate-dentate.
Cauline leaves

gradually reduced (sessile, weakly clasping; lanceolate to oblong or sublyrate, often pinnately lobed).
Peduncles

ebracteate or bracteate (bractlets inconspicuous), glabrous.
Ray florets

8 or 13;

corolla laminae (deep yellow to orange-red) 6–8+ mm.
Disc florets

60–80+;

corolla tubes 4.5–5.5 mm, limbs 2.5–3.5 mm.
Phyllaries

13 or 21, light green (or tips cyanic), 4–8 mm, glabrous.
Calyculi

0 or inconspicuous.
Heads

7–15+ in open, corymbiform arrays.
Cypselae

1–1.5 mm, glabrous;

pappi 3–5 mm.
2n

= 46.

Packera crocata
Phenology Flowering early Jul–mid Aug.
Habitat Wet meadows, along trails, rocky outcrops
Elevation 1800–3500 m (5900–11500 ft)
Distribution
from FNA
CO; ID; NM; NV; UT; WY
[WildflowerSearch map]
[BONAP county map]
Discussion

Packera crocata is characterized by deep yellow to reddish orange corollas. Some collectors have noted that there may be evidence for hybridization between P. crocata and P. dimorphophylla; the relationship between the two species needs further study.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 20, p. 583.
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. 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. 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 crocatus, Senecio pyrrhochrous, Senecio tracyi
Name authority (Rydberg) W. A. Weber & Á. Löve: Phytologia 49: 46. (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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