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flame ragwort

dwarf arctic groundsel, dwarf arctic ragwort, northern butterweed

Habit Perennials, 20–30+ cm; rhizomatous (rhizomes horizontal to erect, not branched), sometimes stoloniferous. Perennials, 6–25+ cm; rhizomatous (mat forming, rhizomes horizontal to suberect, branched).
Stems

1, irregularly lanate or tomentose.

usually 1 (sometimes more, clustered), usually glabrous, sometimes bases and leaf axils tomentose.

Basal leaves

(and proximal cauline) petiolate;

blades orbiculate, ovate, oblanceolate, or rhombic, 20–50+ × 20–40+ mm, bases tapering, sometimes obtuse, margins coarsely dentate to crenate-dentate.

petiolate;

blades ovate to obovate, lyrate, or reniform, 10–30+ × 10–25+ mm, bases cuneate (sometimes tapering to winged petioles) to subcordate or contracted, margins crenate, dentate, or weakly lobed.

Cauline leaves

gradually to abruptly reduced (petioles broad-winged, clasping, blades obovate, bases tapering, margins irregularly dentate; distal sessile, linear to lanceolate, entire).

abruptly reduced (sessile, not clasping; lanceolate, entire or pinnately lobed to pinnatisect).

Peduncles

bracteate, lanate or tomentose distally.

0 or relatively reduced (then densely tomentose).

Ray florets

8–10(–13);

corolla laminae (red-orange) 8–15+ mm.

0 or 11–13;

corolla laminae (yellow, purple streaks in veins) 10–14+ mm.

Disc florets

35–65+;

corolla tubes 4–5 mm, limbs 5–6 mm.

60–75+;

corolla tubes 2–2.5 mm, limbs 4–5 mm.

Phyllaries

21, green (tips sometimes deep red), 8–10+ mm, densely tomentose proximally, sparsely tomentose distally.

21, deep red or green (tips red), 6–8 mm, glabrous.

Calyculi

conspicuous.

conspicuous (bractlets cyanic).

Heads

1–3+.

1–2.

Cypselae

1.5–2.5 mm, glabrous;

pappi 8–11 mm.

1.5–2 mm, glabrous;

pappi 5–6 mm.

2n

= 40, 46, 92.

= 46, 92, 138.

Packera greenei

Packera cymbalaria

Phenology Flowering mid May–early Jul. Flowering mid Jun–early Aug.
Habitat Dry, rocky, usually serpentine soils, open scrub-pine associations Exposed rocky slopes, tundra turf
Elevation 100–1600 m (300–5200 ft) 0–1900 m (0–6200 ft)
Distribution
from FNA
CA
[WildflowerSearch map]
[BONAP county map]
from FNA
AK; AB; BC; NF; NT; QC; YT
[WildflowerSearch map]
Discussion

Of conservation concern.

Packera greenei is known from Coast Ranges of northern California. It has relatively large heads and bright orange-red ray corollas; its leaves are usually cyanic abaxially.

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

Packera cymbalaria occurs in three, disjunct regions: western Alaska eastward into western N.W.T. and south into northwestern British Columbia; Newfoundland and the Gaspé Peninsula, Quebec; and Siberia. Considerable morphologic overlap exists between western and eastern populations in North America; western populations have slightly different flavonoid chemistries and chromosome numbers. Western populations are either diploid or tetraploid; eastern populations are hexaploid. The correct name for this species may prove to be Packera heterophylla (Fischer) E. Wiebe, based on Cineraria heterophylla Fischer.

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

Source FNA vol. 20, p. 588. 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. 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. 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 greenei Senecio cymbalaria, Cineraria lyrata, P. resedifolia, S. fernaldii, S. resedifolius
Name authority (A. Gray) W. A. Weber & Á. Löve: Phytologia 49: 47. (1981) (Pursh) W. A. Weber & Á. Löve: Bot. Not. 128: 497. (1976)
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