Packera cynthioides
Packera neomexicana
White Mountain ragwort
New Mexico groundsel
1 or 2–3, clustered, densely lanate-tomentose or canescent, tufts of arachnoid tomentum in leaf axils, or glabrescent.
1 or 2–5+, clustered, lanate- or arachno-tomentose or glabrescent.
(thick, leathery) petiolate;
blades narrowly lanceolate or oblanceolate, 25–100+ × 5–20 mm, bases tapering, margins entire, subentire, dentate, or wavy (adaxial faces early glabrescent).
(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 (sessile; lanceolate to oblanceolate, entire or wavy).
gradually or abruptly reduced (proximal petiolate, similar to basals; mids and distals sessile, lanceolate, entire).
0 (or relatively reduced, then densely tomentose).
conspicuously bracteate, usually hairy.
(5–)8;
corolla laminae 8–10+ mm.
(5–)8 or 13;
corolla laminae 4–10 mm.
35–45+;
corolla tubes 2.5–3.5 mm, limbs 3.5–4.5 mm.
40–60+;
corolla tubes 1.5–2.5 mm, limbs 3.5–4.5 mm.
(8–)13, green (tips red), 3–6 mm, densely tomentose proximally, glabrate distally.
13 or 21, green or yellowish, 4–7+ mm, tomentose to glabrescent.
inconspicuous (bractlets red-tipped).
conspicuous.
10–30+ in open or congested, cymiform arrays.
3–20+ in open or compact, corymbiform to subumbelliform arrays (subtended by smaller arrays arising from leaf axils).
1–1.5 mm, glabrous;
pappi 5–6 mm.
1.5–2.5 mm, usually hirtellous on ribs, sometimes glabrous;
pappi 5–6+ mm.
= 46.
= 44, 46, 92.
Packera cynthioides
Packera neomexicana
Packera cynthioides blooms later than other Packera species at the same latitudes. It is noted by collectors as usually growing on north- or west-facing slopes in limestone-derived soils. Its cauline leaves are well developed and held at a shallow angle to the stem, giving the plant a more “leafy” aspect than other members of the genus.
(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 |
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