Flora of North America species comparison

1–5+, loosely erect, densely long-stipitate-glandular.

mostly basal and cauline, basal and proximal cauline tufted, often marcescent; petiolate to sessile (distal), petioles 10–32 mm, bases sheathing;

blades oblanceolate to spatulate, 10–80(–120) × 15(–20) mm, progressively reduced distally, thick, firm, bases ± attenuate, margins entire or irregularly serrate, eciliate, teeth apiculate to ± spinulose, apices obtuse to acute, mucronate-indurate or callous, faces glabrous.

stipitate-glandular [bracts not observed].

hemispheric-campanulate, 8–12 mm.

13–27;

corollas white to lavender, 8–17(–20) × 1.7–2.2(–3) mm.

29–47;

corollas pale yellow, 5.5–(6–8) mm, barely ampliate, tubes 2.6–2.9 mm, slightly longer than funnelform throats 1.9–2.3 mm, lobes erect to spreading, lanceolate, 0.8–1 mm.

in 4–5 series, often partly purplish (especially inner), ± keeled, lanceolate to linear-lanceolate, margins narrowly scarious, erose, sometimes stipitate-glandular (particularly on green parts), green zones 1/2–2/3 distal portions and full width (outer) to less than 1/6 and along midveins (inner), apices acute to long-acuminate, squarrose (outer and mid) to appressed (inner), faces glabrous, stipitate-glandular (green parts).

1–5, borne singly or in ± corymbiform arrays.

brown, fusiform, slightly compressed, 2.5–3.5 mm, 8–10-nerved, faces ± densely strigillose;

pappi of yellowish bristles ca. 6 mm.