Flora of North America species comparison

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

1–5, ascending to erect, sparsely hispid distally.

thin, margins entire or sometimes serrate, apices acute to obtuse, faces usually glabrous, sometimes sparsely hairy;

basal usually persistent, petiolate to subpetiolate, blades broadly elliptic to obovate, 30–200 × 8–25(–30) mm, bases attenuate, margins entire or sometimes serrate, apices acute to obtuse;

proximal cauline sessile or subpetiolate, blades elliptic to obovate, 35–120 × 8–25 mm, bases attenuate or cuneate to rounded, sometimes ± clasping, apices acute;

distal sessile, reduced distally, bases cuneate, apices acute.

thin, margins entire to serrate, apices acute, faces scabrous;

basal withering by flowering, petiolate, blades elliptic to obovate 30–300 × 15–50 mm, attenuate, margins entire to serrate, apices acute, faces rough-hispidulous;

proximalmost cauline sometimes withering by flowering, sessile, blades elliptic to obovate, 100–200 × 20–50 mm, bases rounded to ± clasping, sometimes auriculate, apices acute;

distal sessile, blades 20–150 × 10–40 mm, bases cuneate, usually auriculate, apices acute.

sparsely hairy, bracts 0–3, lanceolate.

sparsely hairy, bracts lanceolate to linear.

campanulate, 6–16(–20) mm.

campanulate, 5–8 mm.

15–60;

corollas violet to purple, laminae 8–18(–20) × 1–2 mm.

15–40;

corollas violet, laminae 8–15 × 1–2 mm.

50–150;

corollas yellow, 4–7 mm, lobes triangular, 0.4–1 mm.

35–60+;

corollas yellow, 3.5–4 mm, lobes triangular, 0.5–0.8 mm.

in 4–6 series, oblanceolate or oblong (outer) to lanceolate or linear (inner), subequal or unequal (outer exceeding inner), bases outer foliaceous, inner indurate, margins entire, green zones elliptic to lanceolate, apices acute to rounded, faces glabrous or puberulent.

in 4–6 series, narrowly oblong (outer) to linear (inner), unequal to subequal, bases scarious, margins scarious, entire, green zones lanceolate to narrowly elliptic, apices acute, faces glabrate or puberulent.

borne singly or in paniculiform arrays, branches ascending, up to 25 cm.

in paniculiform arrays, branches 10–30 cm.

brown, cylindric to obovoid, not compressed, 2.5–4 mm, 3–4-nerved, faces hairy;

pappi white to tawny, 5–8 mm.

brown, cylindric to obovoid, not compressed, 2.5–3.5 mm, 3–4-nerved, faces hairy;

pappi white, 3.5–4 mm.

= 16.