Flora of North America species comparison

60–150 cm, glabrous or glabrate.

50–150(–200) cm, densely and loosely white-floccose, glabrescent, eglandular.

surfaces glabrous or glabrate;

basal and proximal cauline with petiole 1–2 mm;

blade obovate to oblanceolate, oblong, or oblong-lanceolate, 4–12(–20) × 1.5–5 cm, base subrounded to broadly cuneate;

cauline subclasping, gradually smaller distally, base not decurrent, margins coarsely and regularly crenate-dentate to dentate or pinnately dentate-lobed, apex of distal cauline and floral bracts acute.

surfaces densely and loosely white-floccose, glabrescent, especially abaxially, sometimes thin-persistent adaxially, eglandular;

basal and proximal cauline sessile;

blade obovate to oblong-ovate, 12–30(–40) × 5–10(–15) cm, base attenuate;

cauline clasping or subclasping, gradually smaller distally, base not decurrent, margins crenate or subentire, apex of distal cauline and floral bracts acuminate.

unbranched, rarely branched from proximal nodes, narrowly cylindric, flowers remote, solitary in axils at least distally;

rachis stipitate-glandular, without other vestiture;

bracts ovate to lanceolate-ovate, 7–10(–15) mm, base decurrent, apex acute to short-acuminate, stipitate-glandular.

freely branched, broadly elliptic to ovate panicle, flowers becoming remote in fruit, in clusters of 2–5;

rachis densely and loosely white-floccose on both surfaces, easily separating, glabrescent, eglandular;

bracts linear, 3–5 mm, base not decurrent, apex acute, densely and loosely white-floccose on both surfaces, easily separating, glabrescent, eglandular.

free or adnate to rachis at base, 5–11(–15) mm;

bracteoles 0.

free, (1–)2–5(–7) mm;

bracteoles 2.

calyx 5–7 mm, stipitate-glandular, lobes linear-lanceolate to narrowly oblong;

corolla purple in bud, becoming yellow, yellow-orange, yellow with purple center, white, cream with red-tinged tips, or pink, 25–35 mm diam., pellucid glands absent or relatively few;

proximal filaments hairy, hairs purple, distal pair villous, hairs white and purple or violet;

stigma spatulate, base decurrent.

calyx 2–3.5 mm, densely and loosely white-floccose on both surfaces, easily separating, glabrescent, eglandular, lobes linear-lanceolate;

corolla yellow, 18–20 mm diam., pellucid glands numerous;

filaments villous, hairs white;

stigma capitate.

subglobular, 5–8 mm, sparsely stipitate-glandular apically.

ellipsoid-globular, 3–5(–8) mm, glabrescent.

= 18, 30, 32.