Flora of North America species comparison

1–5+, ascending to erect, proximally glabrous, distally usually glabrous or sparsely puberulent, rarely densely hirsute.

1–5+, ascending to erect, densely puberulent to lanate, especially distally.

thin, margins entire or often serrate, apices acute, faces glabrous or sparsely puberulent;

basal withering by flowering, petiolate to subpetiolate, blades oblanceolate to narrowly elliptic or linear, 50–150 × 3–25 mm, bases attenuate, margins entire or sometimes serrate, apices acute;

proximalmost cauline withering by flowering, subpetiolate or sessile, blades obovate or oblanceolate to narrowly elliptic, rarely linear, 50–150 × 4–35 mm, bases attenuate or cuneate;

distal sessile, blades 30–100(–130) × 3–15(–30) mm, bases cuneate, rounded or sometimes ± auriculate, margins sometimes serrate, scabrous.

thin, margins entire, apices acute, faces densely lanate-puberulent;

basal often withering by flowering, subpetiolate, blades oblanceolate, 15–50 × 5–20 mm, bases cuneate, margins entire, apices acute, faces densely lanate;

proximal cauline sessile or subpetiolate, blades oblanceolate, 50–150 × 10–25 mm, bases slightly clasping, rarely auriculate;

distal sessile, blades lanceolate, 30–100 × 10–20 mm, reduced distally, bases tapered, ± auriculate, apices acute.

sparsely hairy, bracts 1–10, lance-oblong to linear, sometimes clasping, margins scabrous.

densely cinereous to lanate, bracts 0–3, lanceolate to narrowly ovate.

campanulate, 5–8(–10) mm.

campanulate, 7–9 mm.

15–45;

corollas violet, laminae 10–16(–20) × (1–)1.5–2.5 mm.

20–35;

corollas violet, laminae 12–20 × 1–2 mm.

50–75;

corollas yellow becoming reddish, 4–7 mm, lobes triangular, 0.5–1 mm, glabrous.

35–70;

corollas yellow, 5–6.5 mm, lobes triangular, 0.5–1 mm.

in 4–6 series, appressed or squarrose, oblong or narrowly oblanceolate or linear (outer) to linear (inner), unequal to subequal (outer shorter than or equal to inner, often less than 3 times as long as wide), bases outer indurate less than 1/2 (some foliaceous), inner scarious, margins entire, sometimes ciliate, green zones obovate to elliptic, apices acute to obtuse, faces usually glabrous, rarely sparsely puberulent.

in 4–5(–6) series, squarrose, oblong to oblanceolate, unequal, bases of outer indurate less than 1/3, margins entire, green zones oblong-linear to oblanceolate, apices acute or obtuse (sometimes minutely mucronate), faces densely puberulent to lanate.

in open, corymbiform, paniculiform, or racemiform arrays, branches 5–30 cm.

in corymbiform to paniculiform arrays, branches to 20 cm.

brown or purplish, cylindric to obovoid, not compressed, 2–4 mm, 3–6-nerved, faces hairy;

pappi whitish to tawny or reddish, 4.5–8 mm.

brown, cylindric to obovoid, not compressed, 2.5–3.5 mm, 4–5-nerved, faces hairy;

pappi whitish, 5–7 mm.

= 48, 64, 80, 96.

= 32.