Packera cymbalaria
Packera hartiana
dwarf arctic groundsel, dwarf arctic ragwort, northern butterweed
Hart's ragwort
usually 1 (sometimes more, clustered), usually glabrous, sometimes bases and leaf axils tomentose.
1 or 2–3, clustered, bases and leaf axils usually loosely floccose-tomentose, sometimes glabrate.
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.
petiolate;
blades ovate to obovate or suborbiculate, 30–80 × 20–40+ mm, bases tapering, sometimes obtuse or contracted, margins serrate-dentate to weakly crenate (abaxial faces sometimes hairy).
abruptly reduced (sessile, not clasping; lanceolate, entire or pinnately lobed to pinnatisect).
gradually reduced (petiolate, often sublyrate, sometimes weakly pinnatisect; mids and distals sessile, pinnatisect to subentire).
0 or relatively reduced (then densely tomentose).
bracteate, loosely tomentose or glabrescent.
0 or 11–13;
corolla laminae (yellow, purple streaks in veins) 10–14+ mm.
8 or 13;
corolla laminae 5–8 mm.
60–75+;
corolla tubes 2–2.5 mm, limbs 4–5 mm.
50–65+;
corolla tubes 2–4 mm, limbs 2.5–3.5 mm.
21, deep red or green (tips red), 6–8 mm, glabrous.
(13–)21, green, 5–7 mm, glabrous or sparsely tomentose.
conspicuous (bractlets cyanic).
0.
1–2.
3–9+ in open, corymbiform arrays.
1.5–2 mm, glabrous;
pappi 5–6 mm.
1–2 mm, glabrous;
pappi 3.5–4.5 mm.
= 46, 92, 138.
= 44.
Packera cymbalaria
Packera hartiana
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 hartiana resembles both P. paupercula and P. plattensis; it is separated from both on the basis of geography and morphologic characters. New Mexico populations were formerly treated as P. quaerens; the morphologic characters used to separate the two entities vary and overlap.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
BC
PNW Herbaria
WildflowerSearch
iNaturalist
USDA Plants Database
