Packera cymbalaria
Packera ionophylla
dwarf arctic groundsel, dwarf arctic ragwort, northern butterweed
Tehachapi ragwort
usually 1 (sometimes more, clustered), usually glabrous, sometimes bases and leaf axils tomentose.
usually 1, rarely 2–3, clustered, irregularly arachnoid-tomentose to lanate-tomentose or glabrescent.
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, relatively turgid) petiolate;
blades broadly ovate or lyrate (± pinnately lobed, lateral lobes 1–3 pairs, smaller than terminals), 10–30+ × 10–20+ mm, bases tapering to cuneate, ultimate margins subentire or crenate to coarsely dentate (abaxial faces tomentose).
abruptly reduced (sessile, not clasping; lanceolate, entire or pinnately lobed to pinnatisect).
gradually reduced (sessile; bractlike, entire).
0 or relatively reduced (then densely tomentose).
bracteate, irregularly tomentose.
0 or 11–13;
corolla laminae (yellow, purple streaks in veins) 10–14+ mm.
8–13;
corolla laminae 8–10 mm.
60–75+;
corolla tubes 2–2.5 mm, limbs 4–5 mm.
60–75+;
corolla tubes 2.5–4 mm, limbs 3.5–5 mm.
21, deep red or green (tips red), 6–8 mm, glabrous.
(8–)13 or 21, green, 7–10+ mm, densely tomentose proximally, glabrescent distally (tips hair-tufted).
conspicuous (bractlets cyanic).
inconspicuous.
1–2.
3–6 in cymiform arrays.
1.5–2 mm, glabrous;
pappi 5–6 mm.
2–2.5 mm, glabrous;
pappi 5–7 mm.
= 46, 92, 138.
= 46.
Packera cymbalaria
Packera ionophylla
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.)
Of conservation concern.
Packera ionophylla is known only from the San Bernardino, San Gabriel, and Tehachapi mountains and a population on Alamo Mountain in eastern Ventura County.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
BC
PNW Herbaria
WildflowerSearch
iNaturalist
USDA Plants Database
CA
