Flora of North America species comparison

50–100 cm, densely stipitate-glandular, sometimes also sparsely hirsute-villous.

60–200 cm, densely and persistently tomentose, eglandular.

surfaces densely stipitate-glandular, sometimes also sparsely hirsute-villous;

basal and proximal cauline with petiole 1–2 mm;

blade elliptic to elliptic-obovate, 8–20(–30) × 2.5–8(–15) cm, base subrounded to broadly cuneate;

cauline not clasping, gradually smaller distally, base not decurrent, margins coarsely crenate to crenulate, apex of distal cauline and floral bracts acute to obtuse.

surfaces densely and persistently tomentose, eglandular;

basal and proximal cauline with petiole 15–40 mm;

blade broadly elliptic to lanceolate-oblong, 25–35 × 15–25 cm, base attenuate;

cauline slightly auriculate-clasping, gradually smaller distally, base not decurrent, margins obscurely crenate or entire, apex of distal cauline and floral bracts acute.

unbranched, narrowly cylindric, flowers remote, solitary in axils at least distally, sometimes 1(–5) at proximal nodes;

rachis densely stipitate-glandular, sometimes also sparsely hirsute-villous with simple hairs;

bracts linear-lanceolate, 8–20 mm, base not decurrent, apex long-acuminate, densely stipitate-glandular, sometimes also sparsely hirsute-villous with simple hairs.

unbranched or branched from proximal nodes, narrowly cylindric, flowers loosely overlapping, in clusters of 2–8;

rachis densely and persistently tomentose, eglandular;

bracts ovate to lanceolate-triangular, 7–12 mm, base not decurrent, apex acuminate, densely and persistently tomentose, eglandular.

free, (0–)1–3 mm;

bracteoles 2.

free, 2–5 mm;

bracteoles 2.

calyx 4–9 mm, densely stipitate-glandular, sometimes also sparsely hirsute-villous with simple hairs, lobes ovate-lanceolate to triangular or narrowly lanceolate;

corolla yellow, (25–)30–40 mm diam., pellucid glands absent or relatively few;

proximal filaments glabrous at least distally, distal pair villous, hairs purplish to violet or whitish;

stigma capitate.

calyx 6–10 mm, densely and persistently tomentose, eglandular, lobes lanceolate to narrowly lanceolate;

corolla yellow, (20–)30–40 mm diam., pellucid glands absent;

filaments villous, hairs yellowish to yellowish white, or 2 proximal glabrous distally or completely;

stigma spatulate, base decurrent.

ovoid-globular to subglobular, 6–10 mm, stipitate-glandular.

ovoid to subglobular, 5–8 mm, tomentose.