Packera tampicana
Packera multilobata
Great Plains ragwort
lobeleaf groundsel
1 or 2–6+, clustered (bases cyanic), glabrous or leaf axils sparsely tomentose.
1 or 2–5, loosely clustered, usually glabrous or glabrescent, sometimes sparsely tomentose throughout, axils (basal leaves) tomentose.
(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.
(and proximal cauline) petiolate;
blades obovate, oblanceolate, spatulate, or lyrate to sublyrate (± pinnately lobed, lateral lobes 3–6 pairs, smaller than terminal lobes), 40–80+ × 10–30+ mm, bases tapering, ultimate margins incised to dentate.
gradually reduced (± petiolate or sessile, clasping; often auriculate, pinnately dissected to pinnately lobed).
gradually reduced (sessile).
bracteate, glabrous.
conspicuously bracteate, glabrous or tomentose.
8 or 13;
corolla laminae 3–7 mm.
8–13;
corolla laminae 7–10 mm.
30–45(–100+);
corolla tubes 1.5–2.5 mm, limbs (1.5–)2.5–3.5 mm.
40–50+;
corolla tubes 4–5 mm, limbs 3–4 mm.
13 or 21, green (tips sometimes reddish), 3–7 mm, glabrous.
13–21, green (tips often yellow), 4–9+ mm, glabrous or sparsely tomentose (at least proximally).
inconspicuous or 0.
conspicuous.
4–25+ in corymbiform arrays.
10–30+ in open, corymbiform or subumbelliform arrays.
1–1.5 mm, hirtellous on ribs;
pappi 3–5 mm.
2–3 mm, glabrous or hirtellous on ribs;
pappi 5–6 mm.
= 46.
= 46, 92.
Packera tampicana
Packera multilobata
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.)
Packera multilobata is abundant and widespread west of the Continental Divide. Both morphology and habitat vary. In colder parts of its range, plants are shorter, caudices are better developed with clustered stems, and leaf lobes are larger. In desert-like habitats, basal leaves are narrower and more finely lobed, the tomentum is often persistent, and stems are usually single.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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