Packera cymbalaria
dwarf arctic groundsel, dwarf arctic ragwort, northern butterweed
usually 1 (sometimes more, clustered), usually glabrous, sometimes bases and leaf axils tomentose.
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.
abruptly reduced (sessile, not clasping; lanceolate, entire or pinnately lobed to pinnatisect).
0 or relatively reduced (then densely tomentose).
0 or 11–13;
corolla laminae (yellow, purple streaks in veins) 10–14+ mm.
60–75+;
corolla tubes 2–2.5 mm, limbs 4–5 mm.
21, deep red or green (tips red), 6–8 mm, glabrous.
conspicuous (bractlets cyanic).
1–2.
1.5–2 mm, glabrous;
pappi 5–6 mm.
= 46, 92, 138.
Packera cymbalaria
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.)
BC
PNW Herbaria
WildflowerSearch
iNaturalist
USDA Plants Database
