Flora of North America species comparison

1–10, decumbent to ascending or erect, red-tinged, sometimes branched, sparsely leafy, ± tomentulose or glabrous, sometimes stipitate-glandular.

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

basal blades lanceolate or rarely oblanceolate to narrowly elliptic, 50–300 × 8–30 mm, margins sharply dentate, eciliate, apices acute, spinulose;

cauline sessile, lanceolate, bases clasping;

faces ± tomentulose to glabrate or glabrous, sometimes stipitate-glandular.

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.

0–6 cm.

2–12 cm.

hemispheric, 7–10 × 10–18 mm.

hemispheric, 6–13 × 10–20 mm.

18–45;

corollas 6–11 mm.

18–50;

corollas 7–11 mm.

20–100;

corollas 5–7 mm.

35–60;

corollas 5–8 mm.

in 3–4 series, linear-lanceolate to lanceolate, 3–11 mm, unequal, bases white-chartaceous, margins entire, eciliate, apices conspicuously green, faces glabrous or tomentulose, rarely stipitate-glandular.

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.

(1–)4–20(–50) in corymbiform or paniculiform arrays.

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

oblong, 3.5–4.5 mm, 4-angled, faces striate, sericeous;

pappi tawny, 5–7 mm.

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

pappi tawny, 5–7 mm.