Flora of North America species comparison

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

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

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.

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.

2–12 cm.

1–5 cm.

hemispheric, 6–13 × 10–20 mm.

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

18–50;

corollas 7–11 mm.

0 or 1–30;

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

35–60;

corollas 5–8 mm.

25–50;

corollas 9–14 mm.

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.

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.

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

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

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

pappi tawny, 5–7 mm.

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

pappi tawny, 6–9 mm.