Flora of North America species comparison

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

usually simple, sometimes ± branched.

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.

sparsely hairy, bracts 0–3+.

campanulate, 5–10 mm.

15–40;

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

fewer than disc florets, in 1 series (conspicuous).

30-80(–100);

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

± ampliate, lobes erect.

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 corymbiform to paniculiform arrays, branches usually few.

radiate.

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

pappi whitish, 5–7 mm.

shorter than to equaling disc florets at flowering.

= 8.