Packera breweri
Packera cymbalaria
Brewer's ragwort
dwarf arctic groundsel, dwarf arctic ragwort, northern butterweed
1, glabrous or leaf axils tomentose.
usually 1 (sometimes more, clustered), usually glabrous, sometimes bases and leaf axils tomentose.
(and proximal cauline) petiolate;
blades spatulate to obovate (pinnately lobed, terminal lobes ovate to oblong, lateral lobes 2–6+ pairs, smaller, midribs narrowly winged), 100–300+ × 20–50(–80+) mm, bases contracted to tapering, ultimate margins crenate or dentate to lacerate (faces glabrous).
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.
gradually reduced (petiolate or sessile; obovate, irregularly incised to subpinnate, terminal lobes narrow).
abruptly reduced (sessile, not clasping; lanceolate, entire or pinnately lobed to pinnatisect).
usually ebracteate (rarely with 1–2 bractlets), glabrous.
0 or relatively reduced (then densely tomentose).
8–10+;
corolla laminae 10–15+ mm.
0 or 11–13;
corolla laminae (yellow, purple streaks in veins) 10–14+ mm.
45–60+;
corolla tubes 3–3.5 mm, limbs 4–4.5 mm.
60–75+;
corolla tubes 2–2.5 mm, limbs 4–5 mm.
13 or 21, green, 7–9+ mm, glabrous.
21, deep red or green (tips red), 6–8 mm, glabrous.
inconspicuous.
conspicuous (bractlets cyanic).
15–50+ in corymbiform arrays.
1–2.
2–2.5 mm, glabrous;
pappi 6–7 mm.
1.5–2 mm, glabrous;
pappi 5–6 mm.
= 46.
= 46, 92, 138.
Packera breweri
Packera cymbalaria
Packera breweri is known only from Coast Ranges from San Francisco Bay to Los Angeles County and along the eastern edges of the San Joaquin Valley. Populations are relatively small and sporadic; the plants appear not to hybridize with other species of Packera.
(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.)
CA
WildflowerSearch
iNaturalist
USDA Plants Database
BC
PNW Herbaria
