Flora of North America species comparison

1–5+, ascending to erect, glabrous or sparsely puberulent.

1–5+, ascending to erect, densely and uniformly strigose, especially distally.

thin, margins entire, apices acute, faces glabrous or sparsely puberulent;

basal persistent, petiolate, blades narrowly elliptic to obovate, 50–150 × 3–15 mm, attenuate, margins entire;

proximal cauline sessile or subpetiolate, blades linear to narrowly elliptic, 50–150 × 2–15 mm, bases attenuate or cuneate;

distal sessile, blades 30–60 × 2–10 mm, reduced distally, bases cuneate to rounded.

(grayish green) thin to firm, margins entire, apices acute, faces glabrous or strigose;

basal usually persistent, petiolate, blades oblanceolate, 50–150 × 5–12(–15) mm, bases attenuate or cuneate, margins entire, apices usually acute;

proximal cauline sessile or subpetiolate, blades oblong to narrowly obovate, 50–120 × 5–12 mm, bases attenuate or cuneate;

distal sessile, blades 30–70 × 4–10 mm, reduced distally, bases cuneate to ± rounded.

sparsely hairy, bracts 0–3+.

moderately to densely strigose, bracts 1–4, linear to oblanceolate.

campanulate, 5–10 mm.

campanulate, 4–7 mm.

15–40;

corollas violet, laminae 9–15 × 1–2 mm.

(10–)15–40;

corollas violet, laminae 8–13 × 1–1.5 mm.

30-80(–100);

corollas yellow, sometimes becoming reddish, 4.5–6 mm, lobes triangular, 0.5–1 mm.

25–65(–80);

corollas yellow, sometimes purple-tinged, 4–6 mm, lobes triangular, 0.4–0.8 mm.

in 3–5 series, narrowly oblong or linear (outer) to linear (inner), unequal, bases indurate, margins entire, green zones elliptic to lanceolate, apices usually acute, sometimes obtuse, faces glabrous or ± puberulent.

in 3–5 series, narrowly oblanceolate or linear (outer) to linear (inner), unequal, bases indurate, margins entire, green zones obovate to elliptic, apices obtuse, faces densely strigose.

in corymbiform to paniculiform arrays, branches usually few.

in paniculiform arrays, branches ascending.

brown, cylindric to obovoid, not compressed, 2.5–3.5 mm, ± 4-nerved, faces hairy;

pappi whitish, 5–7 mm.

brown, cylindric to obovoid, not compressed, 2–3.5 mm, 3–5-nerved, faces hairy;

pappi whitish, 4–7 mm.

= 26, 36, 52.