Packera indecora
Packera malmstenii
elegant groundsel, rayless mountain butterweed, rayless mountain groundsel, rayless mountain ragwort
Podunk ragwort
1 or 2–3, loosely clustered, glabrous or glabrate.
1 or 3–5, loosely clustered, glabrous or bases and leaf axils tomentose.
petiolate;
blades elliptic-ovate, oblong, or subreniform, 20–50 × 10–40+ mm, bases subcordate, truncate, or cuneate, margins usually crenate-dentate to coarsely dentate-lacerate, seldom subentire.
(and proximal cauline, relatively thick and turgid) petiolate (petioles sometimes winged);
blades elliptic-ovate or suborbiculate to spatulate, 15–25 × 5–20 mm, bases tapering, margins entire or dentate (at apices).
gradually reduced (petiolate, resembling basals, sublyrate or dissected; distal sessile, subentire to pinnatifid).
abruptly reduced (becoming sessile, bractlike).
ebracteate (or bractlets inconspicuous), glabrous or glabrate.
ebracteate, glabrous.
0 or 8–10;
corolla laminae (deep yellow) 3–5 mm.
(0) or 8–13;
corolla laminae 7–9 mm.
60–70+;
corolla tubes 2–3 mm, limbs 2.5–3.5 mm.
35–50+;
corolla tubes 2–3 mm, limbs 2.5–3.5 mm.
13 or 21, green (tips sometimes reddish), 7–9 mm, glabrous.
13, cyanic, 8–9 mm, glabrous or loosely tomentose proximally.
conspicuous (bractlets green, tips sometimes reddish).
inconspicuous.
8–20+ in subumbelliform arrays.
1–2(–4).
1–2 mm, glabrous;
pappi 3–4 mm.
1–2 mm, glabrous;
pappi 3–4.5 mm.
= 46, 126, 176, 184.
Packera indecora
Packera malmstenii
Packera indecora is found at relatively low elevations in eastern Canada and at middle to subalpine elevations in the western cordillera. It closely resembles P. pauciflora and it is often difficult to identify specimens in the herbarium. Biosystematic studies (J. F. Bain and J. Whitton 1994) have indicated that although they are morphologically similar, P. indecora and P. pauciflora have distinctly different physiologies and should be maintained as distinct taxa.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Of conservation concern.
Packera malmstenii is poorly known; it has obvious affinities with P. werneriifolia in both morphology and habitat preference. Its herbage tends to be thick and turgid.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
BC
CA
WA
Flora NW
MI Flora
MN Wildflowers
PNW Herbaria
WildflowerSearch
iNaturalist
USDA Plants Database
