Packera cymbalaria
Packera cana
dwarf arctic groundsel, dwarf arctic ragwort, northern butterweed
woolly butterweed, woolly groundsel
usually 1 (sometimes more, clustered), usually glabrous, sometimes bases and leaf axils tomentose.
1 (per rosette, rosettes clustered), densely lanate or canescent.
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.
(and proximal cauline) petiolate;
blades ovate or elliptic to lanceolate, 25–50+ × 10–30 mm, bases tapering, margins entire or irregularly undulate to weakly dentate (abaxial faces persistently lanate, adaxial lanate to subglabrescent).
abruptly reduced (sessile, not clasping; lanceolate, entire or pinnately lobed to pinnatisect).
gradually reduced (petiolate or sessile, then weakly clasping; elliptic to lanceolate, entire or weakly dentate).
0 or relatively reduced (then densely tomentose).
bracteate, usually densely lanate to floccose-tomentose (sometimes subglabrescent).
0 or 11–13;
corolla laminae (yellow, purple streaks in veins) 10–14+ mm.
8–10 (or 13);
corolla laminae 8–10+ mm.
60–75+;
corolla tubes 2–2.5 mm, limbs 4–5 mm.
35–50+;
corolla tubes 2.5–3.5 mm, limbs 3.5–4.5 mm.
21, deep red or green (tips red), 6–8 mm, glabrous.
13 or 21, green, 5–8+ mm, densely tomentose.
conspicuous (bractlets cyanic).
inconspicuous (bractlets tomentose).
1–2.
8–15+ in corymbiform arrays.
1.5–2 mm, glabrous;
pappi 5–6 mm.
2.5–3.5+ mm, glabrous;
pappi 4.5–7 mm.
= 46, 92, 138.
= 46, 92.
Packera cymbalaria
Packera cana
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.)
Packera cana is found in a wide variety of habitats and in a wide range of elevations throughout the western Cordillera and into the High Plains. Morphology is relatively uniform throughout its range except that alpine specimens are notably dwarfed and are often mistaken for P. werneriifolia, which differs by its consistently scapiform habit.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
- Local floras:
BC, 
CA, 
OR, 
WA - Local Web sites: CalFlora, CalPhotos,
Flora NW, 
KS Wildflowers, 
MN Wildflowers, 
PNW Herbaria, Turner Photog. 
WildflowerSearch
iNaturalist (observations)
USDA Plants Database- LBJ Wildflower Center
- SEINet
- Plants of the World Online
- Encyclopedia of Life
- Wikipedia
- Google Image Search
