Packera indecora
Packera neomexicana
elegant groundsel, rayless mountain butterweed, rayless mountain groundsel, rayless mountain ragwort
New Mexico groundsel
1 or 2–3, loosely clustered, glabrous or glabrate.
1 or 2–5+, clustered, lanate- or arachno-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.
(often abaxially cyanic) petiolate (petioles hairy to glabrate);
blades ovate to lanceolate or narrowly lanceolate, 20–60+ × 10–30+ mm, bases abruptly contracted to tapering, margins subentire or denticulate to subserrate (abaxial faces usually tomentose, adaxials frequently glabrate).
gradually reduced (petiolate, resembling basals, sublyrate or dissected; distal sessile, subentire to pinnatifid).
gradually or abruptly reduced (proximal petiolate, similar to basals; mids and distals sessile, lanceolate, entire).
ebracteate (or bractlets inconspicuous), glabrous or glabrate.
conspicuously bracteate, usually hairy.
0 or 8–10;
corolla laminae (deep yellow) 3–5 mm.
(5–)8 or 13;
corolla laminae 4–10 mm.
60–70+;
corolla tubes 2–3 mm, limbs 2.5–3.5 mm.
40–60+;
corolla tubes 1.5–2.5 mm, limbs 3.5–4.5 mm.
13 or 21, green (tips sometimes reddish), 7–9 mm, glabrous.
13 or 21, green or yellowish, 4–7+ mm, tomentose to glabrescent.
conspicuous (bractlets green, tips sometimes reddish).
conspicuous.
8–20+ in subumbelliform arrays.
3–20+ in open or compact, corymbiform to subumbelliform arrays (subtended by smaller arrays arising from leaf axils).
1–2 mm, glabrous;
pappi 3–4 mm.
1.5–2.5 mm, usually hirtellous on ribs, sometimes glabrous;
pappi 5–6+ mm.
= 46, 126, 176, 184.
= 44, 46, 92.
Packera indecora
Packera neomexicana
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 3 (3 in the flora).
(Discussion copyrighted by Flora of North America; reprinted with permission.)
1. Plants loosely tomentose or glabrate; basal leaves: blades narrowly lanceolate, margins subentire or irregularly dentate | var. mutabilis |
1. Plants usually densely lanate or woolly tomentose, seldom glabrate; basal leaves: blades ovate or broadly lanceolate, margins dentate to deeply dentate or dissected | → 2 |
2. Plants taprooted; cauline leaves conspicuous | var. neomexicana |
2. Plants rhizomatous or fibrous-rooted; cauline leaves inconspicuous (bractlike) | var. toumeyi |
BC
CA
WA
Flora NW
MI Flora
MN Wildflowers
PNW Herbaria
WildflowerSearch
iNaturalist
USDA Plants Database
