Packera tomentosa
Packera cana
woolly ragwort
woolly butterweed, woolly groundsel
1, densely lanate-tomentose proximally, floccose-tomentose to glabrescent distally.
1 (per rosette, rosettes clustered), densely lanate or canescent.
(and proximal cauline) petiolate;
blades lanceolate to narrowly ovate or elliptic, 40–120+ × 20–50+ mm, bases tapering, sometimes oblique, margins subentire, crenate, or serrate-dentate.
(and proximal cauline) petiolate;
blades ovate or elliptic to lanceolate, 25–50+ × 10–30 mm, bases tapering, margins entire or irregularly undulate to weakly dentate (abaxial faces persistently lanate, adaxial lanate to subglabrescent).
gradually reduced (± petiolate or sessile, weakly clasping; dentate to pinnately lobed).
gradually reduced (petiolate or sessile, then weakly clasping; elliptic to lanceolate, entire or weakly dentate).
bracteate, sparsely to densely tomentose.
bracteate, usually densely lanate to floccose-tomentose (sometimes subglabrescent).
10 or 13;
corolla laminae 6–8+ mm.
8–10 (or 13);
corolla laminae 8–10+ mm.
50–60+;
corolla tubes 3.5–4 mm, limbs 3–3.5 mm.
35–50+;
corolla tubes 2.5–3.5 mm, limbs 3.5–4.5 mm.
13 or 21, light green, 5–8 mm, usually glabrous (sometimes hairy proximally).
13 or 21, green, 5–8+ mm, densely tomentose.
inconspicuous.
inconspicuous (bractlets tomentose).
10–30+ in open, corymbiform arrays (more in robust individuals).
8–15+ in corymbiform arrays.
1–1.5 mm, hispid;
pappi 5–7 mm.
2.5–3.5+ mm, glabrous;
pappi 4.5–7 mm.
= 46.
= 46, 92.
Packera tomentosa
Packera cana
Packera tomentosa is common throughout most of its range. The basal and proximal cauline leaves are held at about 45 degrees to the stems.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Packera cana is found in a wide variety of habitats and in a wide range of elevations throughout the western Cordillera and into the High Plains. Morphology is relatively uniform throughout its range except that alpine specimens are notably dwarfed and are often mistaken for P. werneriifolia, which differs by its consistently scapiform habit.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
LA Plants
MD Biodiversity- Local floras:
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WA - Local Web sites: CalFlora, CalPhotos,
Flora NW, 
KS Wildflowers, 
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PNW Herbaria, Turner Photog. 
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USDA Plants Database- LBJ Wildflower Center
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