Packera indecora
Packera porteri
elegant groundsel, rayless mountain butterweed, rayless mountain groundsel, rayless mountain ragwort
Porter's butterweed, Porter's groundsel
1 or 2–3, loosely clustered, glabrous or glabrate.
1 (often cyanic), glabrous.
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.
(relatively turgid, abaxial faces cyanic) petiolate;
blades reniform to subreniform, 5–15+ × 5–25+ mm, bases abruptly contracted to cordate, margins usually crenate, sometimes wavy.
gradually reduced (petiolate, resembling basals, sublyrate or dissected; distal sessile, subentire to pinnatifid).
abruptly reduced (1–4, sessile; bractlike, entire).
ebracteate (or bractlets inconspicuous), glabrous or glabrate.
ebracteate, glabrous.
0 or 8–10;
corolla laminae (deep yellow) 3–5 mm.
8 or 13;
corolla laminae 8–10+ mm.
60–70+;
corolla tubes 2–3 mm, limbs 2.5–3.5 mm.
40–50+;
corolla tubes 2.5–3.5 mm, limbs 2.5–3.5 mm.
13 or 21, green (tips sometimes reddish), 7–9 mm, glabrous.
13 or 21, deep red, 8–10+ mm, glabrous.
conspicuous (bractlets green, tips sometimes reddish).
conspicuous (bractlets often cyanic).
8–20+ in subumbelliform arrays.
borne singly.
1–2 mm, glabrous;
pappi 3–4 mm.
1.5–2.5 mm, glabrous;
pappi 4–5.5 mm.
= 46, 126, 176, 184.
Packera indecora
Packera porteri
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.)
Multiple collections of Packera porteri are known from Colorado; single collections are known from Oregon (1899; collector indicated few plants were seen) and Washington (1996).
(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
OR
