Flora of North America species comparison

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

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

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

basal often withering by flowering, petiolate, blades broadly elliptic to obovate, 5–200 × 10–35 mm, attenuate or cuneate, margins entire, apices acute;

proximalmost cauline sometimes withering by flowering, sessile, blades oblanceolate to obovate, 70–120 × 15–50 mm, bases strongly clasping, enlarged and usually narrowed distally, usually prominently auriculate, margins entire, apices acute;

distal sessile, blades lanceolate to broadly elliptic, 30–110 × 10–30 mm, bases truncate or auriculate, margins entire.

(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 to densely cinereous, bracts lanceolate.

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

campanulate, 10–20 mm.

campanulate, 4–7 mm.

25–55;

corollas violet, laminae 10–18 × 1–2 mm.

(10–)15–40;

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

60–150+;

corollas yellow, 2.5–4 mm, lobes triangular, 0.4–0.5 mm.

25–65(–80);

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

in 4–5 series, broadly to narrowly lanceolate or oblanceolate (outer) to linear (inner), ± equal or outer slightly exceeding inner, bases outer foliaceous, inner scarious, margins scarious, entire or erose, green zones elliptic to lanceolate, apices acute, faces glabrous or finely hairy.

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 often congested, paniculiform arrays, branches 20–30 cm.

in paniculiform arrays, branches ascending.

brown, cylindric to obovoid, not compressed, 3–3.5 mm, 3–6-nerved, faces hairy;

pappi white, 5–9(–11) mm.

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

pappi whitish, 4–7 mm.

= 16, 32.

= 26, 36, 52.