Packera indecora
Packera eurycephala
elegant groundsel, rayless mountain butterweed, rayless mountain groundsel, rayless mountain ragwort
cut-leaf butterweed, wide-head groundsel
1 or 2–3, loosely clustered, glabrous or glabrate.
1 or, usually, multiple, clustered, densely tomentose to glabrescent.
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.
(soon withering), petiolate;
blades lyrate (lateral lobes 2–6+ pairs), ovate, obovate, or spatulate, 70–100+ × 20–30+ mm, bases tapering, ultimate margins irregularly and coarsely serrate-dentate.
gradually reduced (petiolate, resembling basals, sublyrate or dissected; distal sessile, subentire to pinnatifid).
gradually reduced (± petiolate, proximal and mid similar to basal, terminal lobes smaller than laterals; distal sessile, incised).
ebracteate (or bractlets inconspicuous), glabrous or glabrate.
bracteate, sparsely to densely lanate-tomentose.
0 or 8–10;
corolla laminae (deep yellow) 3–5 mm.
8 or 13;
corolla laminae 10–15 mm.
60–70+;
corolla tubes 2–3 mm, limbs 2.5–3.5 mm.
35–50+;
corolla tubes 3.5–4.5 mm, limbs 2.5–3.5 mm.
13 or 21, green (tips sometimes reddish), 7–9 mm, glabrous.
13 or 21, green (tips sometimes yellow), 8–10+ mm, densely tomentose proximally, glabrescent distally.
conspicuous (bractlets green, tips sometimes reddish).
inconspicuous (bractlets tomentose).
8–20+ in subumbelliform arrays.
5–20+ in open or compact (rarely), cymiform arrays.
1–2 mm, glabrous;
pappi 3–4 mm.
1–1.5 mm, glabrous;
pappi 6–7 mm.
= 46, 126, 176, 184.
= 46.
Packera indecora
Packera eurycephala
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.)
Varieties 2 (2 in the flora).
(Discussion copyrighted by Flora of North America; reprinted with permission.)
1. Stems (1–)2–6; leaf blades: margins usually serrate-dentate, sometimes deeply dissected, midribs winged | var. eurycephala |
1. Stems 1; leaf blades finely dissected, lateral lobes also dissected, midribs not or weakly winged | var. lewisrosei |
BC
CA
WA
Flora NW
MI Flora
MN Wildflowers
PNW Herbaria
WildflowerSearch
iNaturalist
USDA Plants Database
OR
