Packera sanguisorboides
Packera eurycephala
burnet ragwort
cut-leaf butterweed, wide-head groundsel
1 or 2–3, clustered, glabrous or leaf axils tomentose.
1 or, usually, multiple, clustered, densely tomentose to glabrescent.
(and proximal cauline) petiolate;
blades broadly oblanceolate (pinnately lobed, lateral lobes 2–3+ pairs, their bases petioluliform, terminal lobes larger than laterals, ovate to reniform, midribs not winged), 60–120+ × 20–60 mm, bases contracted, ultimate margins crenate to crenate-dentate.
(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 or sessile; lyrate to sublyrate, midribs winged, terminal lobes weakly distinct, shallowly dentate).
gradually reduced (± petiolate, proximal and mid similar to basal, terminal lobes smaller than laterals; distal sessile, incised).
inconspicuously bracteate, glabrous or tomentose proximally.
bracteate, sparsely to densely lanate-tomentose.
8;
corolla laminae 6–12 mm.
8 or 13;
corolla laminae 10–15 mm.
35–50+;
corolla tubes 2.5–3.5 mm, limbs 2–3 mm.
35–50+;
corolla tubes 3.5–4.5 mm, limbs 2.5–3.5 mm.
13, bright green (tips light green to yellow), 4–7 mm, glabrous.
13 or 21, green (tips sometimes yellow), 8–10+ mm, densely tomentose proximally, glabrescent distally.
inconspicuous.
inconspicuous (bractlets tomentose).
3–8+ in subumbelliform or compound, cymiform arrays (of 2–4+ cymiform clusters of 2–5+ heads each).
5–20+ in open or compact (rarely), cymiform arrays.
1.5–2 mm, glabrous;
pappi 4.5–5.5 mm.
1–1.5 mm, glabrous;
pappi 6–7 mm.
= 46.
= 46.
Packera sanguisorboides
Packera eurycephala
Packera sanguisorboides is known from the San Juan and Sangre de Cristo mountains of northern New Mexico, the Magdalena Mountains of western New Mexico, and the Sacramento Mountains of southern Lincoln and Otero counties. It may have affinities with P. coahuilensis Greenman.
(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 |
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