Flora of North America species comparison

1–5+, ascending to erect (light to dark brown), proximally glabrous, distally strigose, stipitate-glandular.

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

(light green) firm, margins entire, scabrous;

basal sometimes persistent, sessile, blades (1–3-nerved) linear-oblanceolate, 10–30 × 4–10 mm, bases attenuate, apices obtuse, mucronate, faces glabrate to sparsely scabrous;

proximal cauline withering by flowering, sessile, blades (3-nerved) narrowly oblanceolate, 20–80 × 2–8 mm, bases cuneate, apices obtuse to acute, mucronulate or white-spinulose, faces glabrous or moderately short-strigose, stipitate-glandular;

distal sessile, blades linear-oblanceolate to -lanceolate or oblong (distally), 20–50 × 2–5 mm, ± reduced distally, bases ± clasping to cuneate, apices acute, mucronulate, faces glabrous or moderately short-strigose, stipitate-glandular.

(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 moderately short-strigose, moderately stipitate-glandular, bracts ± ascending, linear to narrowly-lanceolate.

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

campanulate to cylindro-campanulate, 5.5–8 mm.

campanulate, 4–7 mm.

15–31;

corollas violet, laminae (5–)6–15 × 1–2 mm.

(10–)15–40;

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

25–40;

corollas yellow, 4.5–6 mm, lobes triangular, 0.4–0.8 mm.

25–65(–80);

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

in 3–4 series, linear to lanceolate, subequal to unequal, bases ± indurate, margins scarious, green zones covering distal portion, apices acute to acuminate, outer ± foliaceous, spreading to reflexed, faces glabrate, sparsely to densely stipitate-glandular.

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.

1–10(–30), borne singly or in paniculiform arrays, branches ascending.

in paniculiform arrays, branches ascending.

light brown, sometimes translucent reddish brown between ribs, narrowly obovoid, ± compressed, 2–2.5 mm, 3–4-nerved (faint), moderately strigose on ribs;

pappi tawny, 3.8–6 mm.

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

pappi whitish, 4–7 mm.

= 10.

= 26, 36, 52.