Flora of North America species comparison

1–4, erect or ascending to decumbent, reddish, leafy, villous.

1–7, curved-ascending to decumbent, red-tinged, sparsely leafy to almost naked, glabrate to lanate or tomentulose, eglandular.

basal (in rosettes) petiolate, blades lanceolate to oblanceolate or spatulate, 50–200 × 5–40 mm, margins usually spinulose-serrate, sometimes entire, ciliate, apices acute, faces puberulent;

cauline sessile, blades linear-lanceolate, 40–100 × 5–15 mm, reduced distally, faces glabrous or villous-hispid, eglandular.

basal petiolate, blades linear to oblanceolate or elliptic, 40–150 × 3–20 mm, margins usually sharply dentate to laciniate, rarely entire;

cauline sessile, few, blades lanceolate, 20–50 × 2–6 mm, bases cordate, clasping;

faces glabrous, sparsely to densely shaggy-tomentose or lanate, eglandular.

1–5 cm.

2–12 cm.

turbinate to campanulate, 10–20 × 15–35 mm.

hemispheric, 6–13 × 10–20 mm.

0 or 1–30;

corollas yellow, 2–7 mm (not surpassing involucres).

18–50;

corollas 7–11 mm.

25–50;

corollas 9–14 mm.

35–60;

corollas 5–8 mm.

in 3–5 series (± loose), linear-lanceolate to oblong, 10–20 mm, unequal, bases tapering, margins spinulose-serrate, ciliate, apices occasionally recurved, acute, mucronate, faces puberulent.

in 2 series, appresssed or loose, linear-lanceolate, 6–11 mm, subequal or unequal (sometimes outer ± shorter and green throughout), margins ciliate, faces usually villous to lanate, rarely glabrous.

usually borne singly, terminal, sometimes 2–3 in racemiform arrays, subtended by leaflike bracts.

usually borne singly, sometimes 2–4 in racemiform arrays.

subcylindric, 3–5.5 mm, 4-angled, faces striate or smooth, glabrous;

pappi tawny, 6–9 mm.

subcylindric, 2–4 mm, obscurely nerved and angled, faces sericeous;

pappi tawny, 5–7 mm.