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 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.

(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, lanceolate.

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

campanulate, 6–16(–20) mm.

campanulate, 4–7 mm.

15–60;

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

(10–)15–40;

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

50–150;

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

25–65(–80);

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

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

in paniculiform arrays, branches ascending.

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, 2–3.5 mm, 3–5-nerved, faces hairy;

pappi whitish, 4–7 mm.

= 26, 36, 52.