Flora of North America species comparison

1–5+, erect, straight (± stout, light to dark brown), proximally sparsely to moderately short-strigose, distally densely so, stipitate-glandular.

1–5+, ascending to erect, strigose, villous, or lanate, especially distally.

(dark green) thick, firm, margins revolute (sometimes ± undulate), scabrous;

basal early deciduous, sessile or subpetiolate, blades spatulate to obovate [size unknown], bases cuneate, margins entire to ± serrate, apices acute, faces finely scabrous;

proximal cauline withering by flowering, sessile, blades (adaxially obscurely veined) oblong to lanceolate or narrowly obovate to oblanceolate, proximalmost ± pandurate, 20–70 × 10–20 mm, gradually reduced distally, bases auriculate-clasping, margins entire, finely scabrous, faces finely scabrous, stipitate-glandular;

distal sessile, blades lanceolate to oblanceolate, 14–50 × 6–11 mm, reduced distally (much smaller on branches and grading ± abruptly into bracts), bases ± auriculate-clasping to subclasping, margins entire, apices mucronate to white-spinulose, faces scabrous, sometimes sparsely to moderately stipitate-glandular.

(grayish green) thin to firm, margins entire, apices acute, faces strigose;

basal withering by flowering, petiolate, blades narrowly oblanceolate, 50–100(–150) × 4–12(–15) mm, bases attenuate, margins scabrous to ciliate;

proximalmost cauline often withering by flowering (often with tufts of leaves in axils), sessile, blades linear to narrowly oblong, 30–70(–100) × 4–8(–10) mm, bases attenuate or cuneate, apices acute;

distal sessile, blades 15–80 × 2–8(–10) mm, bases cuneate, sometimes auriculate.

densely short-strigose, ± densely short-stipitate-glandular, bracts 1–8+, spreading to reflexed, linear to narrowly oblong-lanceolate, strigillose, stipitate-glandular, grading into phyllaries.

densely short-strigose, bracts 1–6, linear-oblong, strigose.

campanulate to hemispheric, 8–10 mm.

campanulate, 4–7 mm.

12–24;

corollas lavender violet to dark reddish purple, laminae 14–24 × 1.5–3.5 mm.

15–40;

corollas pale violet, laminae 8–12(–15) × 1–1.5(–2) mm.

20–40;

corollas white with purplish lobes, 7–9 mm, throats cylindro-funnelform (sparsely pilose), lobes narrowly triangular, 0.7–1.5 mm (sparsely glandular).

25–70+;

corollas yellow, 4–6 mm, lobes triangular, 0.4–0.8 mm.

in 4–7 series, spatulate-oblong to lanceolate, unequal, innermost linear-lanceolate, bases tan, ± indurate in proximal 1/3–1/2, margins hyaline, not (outer) to narrowly scarious, strigoso- or hispido-ciliate, sometimes also stipitate-glandular (foliaceous apices), green zones lanceolate-spatulate, covering distal 1/2 or less, foliaceous apically, apices acute (outer) to acuminate or ± caudate (inner), spreading or reflexed (longer, inner), often purplish, faces moderately strigillose, stipitate-glandular.

in 3–6 series, narrowly oblanceolate or linear (outer) to linear (inner), unequal, bases indurate, margins entire, narrowly scarious, ciliate, green zones obovate to elliptic, apices obtuse, mucronulate, faces usually strigose.

in narrow, racemiform to ± broad, paniculiform arrays, sometimes borne singly on branches, branches initially patent then ascending, leafy.

(3–50+) in narrowly paniculiform arrays, branches 2–10(–20) cm.

gray-brown, narrowly obovoid, compressed, 2.5–4 mm, 7–10-nerved, faces sparsely strigose;

pappi tan to tawny, 9–11 mm.

brown, cylindric to obovoid, not compressed, 1.5–3 mm, ribs 5–8, faces hairy;

pappi whitish, 4–6 mm.

= 50.

= 36.