Wyethia amplexicaulis
Wyethia mollis
mule-ears, northern mule's ears, northern mule-ears, smooth dwarf sunflower
woolly mule's ears, woolly mule-ears
blades (green, shining) lance-elliptic or oblong-lanceolate to lanceolate, 15–30(–40+) cm, margins usually entire, sometimes denticulate or dentate, not ciliate, faces glabrous (gland-dotted, vernicose);
cauline leaves similar, smaller distally (distalmost sessile, usually ± clasping).
blades lanceolate to oblong-ovate (whitish to gray or green), 20–30(–40) cm, margins entire, not ciliate, faces sparsely to densely tomentose to tomentulose (usually gland-dotted as well), glabrescent (nearly bald in age);
cauline similar, smaller distally.
hemispheric to turbinate, 15–30 mm diam.
campanulate to hemispheric, 20–25(–30) mm diam.
8–21(–25);
laminae 25–60 mm.
6–15;
laminae 15–45 mm.
18–36+, subequal or unequal, herbaceous (at least outer), margins not ciliate, faces glabrous;
outer 18–32 mm (surpassing inner).
12–22, subequal to unequal, herbaceous, margins not ciliate, faces tomentose to tomentulose;
outer 20–40 mm (equaling or surpassing inner).
usually 2–8 in ± corymbiform to racemiform arrays, sometimes borne singly.
2–3 in racemiform to corymbiform arrays or borne singly.
8–9 mm, glabrous.
9–10 mm, distally strigillose.
= 38.
= 38.
Wyethia amplexicaulis
Wyethia mollis
Wyethia amplexicaulis introgressively hybridizes with W. arizonica (producing plants called W. ×magna A. Nelson ex W. A. Weber) across a broad area of central and southern Colorado. Habit of the hybrid is typical of W. amplexicaulis; the indument resembles that of W. arizonica in varying degrees. Occasionally, W. amplexicaulis hybridizes with but does not introgress with W. helianthoides.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Wyethia mollis grows in the Sierra Nevada and the Cascade Range.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
OR
WA
CalFlora
Flora NW
PNW Herbaria
WildflowerSearch
iNaturalist
USDA Plants Database
