Flora of North America species comparison

1–7, procumbent to decumbent or ascending, red tinged, scapiform, glabrous or sparsely tomentose.

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

basal petiolate, blades lanceolate to narrowly oblanceolate, 30–100 × 2–18 mm (leathery), margins usually coarsely dentate to laciniate, rarely entire, ciliate;

cauline sessile, blades linear-lanceolate (bractlike), 10–20 × 1–2 mm;

faces glabrous, 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.

2–3 cm.

1–5 cm.

hemispheric, 7–13 × 13–20 mm.

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

11–40;

corollas 7–16 mm.

0 or 1–30;

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

45–90;

corollas 5–7 mm.

25–50;

corollas 9–14 mm.

in 3–4 series, green, oblanceolate to narrowly oblong, 4–10 mm, unequal, margins white to purplish, entire, ciliate, apices green, broad, acute, faces 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, terminal, rarely 1–2 smaller proximally.

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

fusiform, slightly flattened, 5–7 mm, 3-angled, faces striate, glabrous;

pappi tawny, 5–7.5 mm.

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

pappi tawny, 6–9 mm.

= 12.