Packera indecora
Packera macounii
elegant groundsel, rayless mountain butterweed, rayless mountain groundsel, rayless mountain ragwort
long-ray groundsel, Macoun's butterweed, Macoun's groundsel, Puget butterweed, Siskiyou Mountain ragwort, Siskiyou Mountains ragwort
1 or 2–3, loosely clustered, glabrous or glabrate.
1, sparsely to densely tomentose or 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.
(and proximal) petiolate;
blades lanceolate to oblanceolate, 30–50+ × 10–20 mm, bases tapering, margins entire or shallowly toothed (slightly revolute).
gradually reduced (petiolate, resembling basals, sublyrate or dissected; distal sessile, subentire to pinnatifid).
gradually reduced (distal sessile, bractlike).
ebracteate (or bractlets inconspicuous), glabrous or glabrate.
inconspicuously bracteate or ebracteate, sparsely tomentose to glabrate.
0 or 8–10;
corolla laminae (deep yellow) 3–5 mm.
8(–13);
corolla laminae 8–10+ mm.
60–70+;
corolla tubes 2–3 mm, limbs 2.5–3.5 mm.
30–40+;
corolla tubes 2.5–3.5 mm, limbs 2–3 mm.
13 or 21, green (tips sometimes reddish), 7–9 mm, glabrous.
13 or 21, green, 5–7+ mm, glabrous.
conspicuous (bractlets green, tips sometimes reddish).
0 or inconspicuous.
8–20+ in subumbelliform arrays.
6–15+ in corymbiform arrays.
1–2 mm, glabrous;
pappi 3–4 mm.
1.5–2 mm, glabrous;
pappi 4–5 mm.
= 46, 126, 176, 184.
= 46, 92.
Packera indecora
Packera macounii
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.)
Packera macounii is similar in overall morphology to P. cana. Leaves of P. macounii are narrower and frequently revolute. It is often cited as being collected on serpentine soils; it is not restricted to them. Senecio fastigiatus Nuttall (1840) is a later homonym of S. fastigiatus Schweinitz ex Elliott (1823), a name of uncertain application.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
MI Flora
MN Wildflowers- Local floras:
BC, 
CA, 
OR, 
WA - Local Web sites: CalFlora, CalPhotos,
Flora NW, 
PNW Herbaria, Turner Photog. 
WildflowerSearch
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USDA Plants Database- LBJ Wildflower Center
- SEINet
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