Packera sanguisorboides
Packera tampicana
burnet ragwort
Great Plains ragwort
1 or 2–3, clustered, glabrous or leaf axils tomentose.
1 or 2–6+, clustered (bases cyanic), glabrous or leaf axils sparsely tomentose.
(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.
(and proximal cauline) petiolate;
blades oblanceolate to spatulate (usually pinnately lobed, lateral lobes 1–6+ pairs, their bases petioluliform, terminal lobes usually larger than laterals, often reniform to ± orbiculate, midribs sometimes ± winged and/or toothed between the primary lobes), 40–120+ × 10–30+ mm, bases ± cuneate, ultimate margins subentire or irregularly crenate, dentate, or lobed.
gradually reduced (petiolate or sessile; lyrate to sublyrate, midribs winged, terminal lobes weakly distinct, shallowly dentate).
gradually reduced (± petiolate or sessile, clasping; often auriculate, pinnately dissected to pinnately lobed).
inconspicuously bracteate, glabrous or tomentose proximally.
bracteate, glabrous.
8;
corolla laminae 6–12 mm.
8 or 13;
corolla laminae 3–7 mm.
35–50+;
corolla tubes 2.5–3.5 mm, limbs 2–3 mm.
30–45(–100+);
corolla tubes 1.5–2.5 mm, limbs (1.5–)2.5–3.5 mm.
13, bright green (tips light green to yellow), 4–7 mm, glabrous.
13 or 21, green (tips sometimes reddish), 3–7 mm, glabrous.
inconspicuous.
inconspicuous or 0.
3–8+ in subumbelliform or compound, cymiform arrays (of 2–4+ cymiform clusters of 2–5+ heads each).
4–25+ in corymbiform arrays.
1.5–2 mm, glabrous;
pappi 4.5–5.5 mm.
1–1.5 mm, hirtellous on ribs;
pappi 3–5 mm.
= 46.
= 46.
Packera sanguisorboides
Packera tampicana
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.)
Packera tampicana is fairly widespread along the Gulf Coastal Plain and north and in Mexico. Morphologically, P. tampicana most closely resembles P. glabella; the former grows in very wet, sandy or clay soils and open sunlight, the latter grows in drier habitats, usually in partial shade.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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