Flora of North America species comparison

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

1–10+, ascending to erect, glabrous or sparsely puberulent.

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.

thin, margins entire or sometimes serrate, apices acute;

basal withering by flowering, petiolate, blades narrowly lanceolate, 60–200 × 10–20 mm, attenuate or cuneate, margins usually entire, sometimes serrate, apices acute, faces glabrous or sparsely puberulent;

proximalmost cauline sometimes withering by flowering, sessile, blades narrowly lanceolate, 50–150 × 8–25 mm, bases cuneate, often auriculate, apices acute;

distal sessile, blades linear to narrowly lanceolate, 20–120 × 3–20 mm, bases cuneate, often auriculate, apices acute.

sparsely hairy, bracts 0–3+.

sparsely hairy, bracts linear to lanceolate.

campanulate, 5–10 mm.

campanulate, 5–8 mm.

15–40;

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

20–40;

corollas white to pink, laminae 7–15 × 1–2 mm.

30-80(–100);

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

35–60+;

corollas yellow, 4.5–5 mm, lobes triangular, 0.5–0.75 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, often spreading, oblanceolate (outer) to linear (inner), subequal, outer indurate less than 1/2, bases outer variable, inner scarious, margins entire, scabrous to ciliolate, green zones oblanceolate to elliptic, apices acute to obtuse, often spreading, faces glabrous or sparsely puberulent.

in corymbiform to paniculiform arrays, branches usually few.

in racemiform to narrow, paniculiform arrays, branches usually to 10 cm.

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, 2.5–3.5 mm, 1–2-nerved, faces hairy;

pappi white, 5–6 mm.

= 16, 32, 48, 64.