Flora of North America species comparison

1–5+, ascending to erect (strict, 0.9–1.7 cm diam., only distal lateral branches developing in larger plants), moderately to densely hispido-strigose, more so proximally, moderately to densely stipitate-glandular, more so distally.

ascending to erect (sometimes ± brittle, sometimes brown), glabrate to densely hispid or densely stipitate-andular (axillary leaf fascicles sometimes present).

basal and proximal cauline petiolate (petioles 3–7 cm, bases auriculate-clasping), blades ovate or elliptic to oblong, 50–80 × 20–30 mm, margins flat or somewhat undulate, coarsely serrate to serrulate or entire, proximally long-ciliate, apices acute, faces moderately to densely long-hispido-strigose;

distal sessile, blades oblong-lanceolate to lanceolate, 20–40 × 20–30 mm, reduced distally, margins often undulate, coarsely serrate.

basal and proximal cauline withering by flowering;

sessile;

mid and distal blades ovate to linear-lanceolate, 12–50 × 4–40 mm, rounded to very weakly clasping, margins flat, strigoso-ciliate, apices acute, faces glabrate to densely hairy and/or stipitate-glandular;

branch leaves reduced.

10–65 mm, sparsely to densely hispido-strigose, densely stipitate-glandular;

bracts 0–3, linear-lanceolate to linear, reduced distally.

5–50 mm, sparsely to densely hispid, stipitate-glandular;

bracts linear to narrowly lanceolate, 3–9 × 0.5–2 mm.

campanulo-hemispheric, 6–9 mm.

turbino-cylindric, 7.5–14 mm.

20–40;

laminae 5–8 × 1–2 mm.

0.

30–75;

corollas 4–6 mm, lobes 0.5–0.8 mm.

(14–)20–45(–60);

corollas ± ampliate, (7.5–)8.5–11(–14) mm, throats and lobes sparsely short-pilose, lobes 0.4–0.9 mm (margins thickened).

in 4–6 series, linear-lanceolate, unequal, margins scarious, faces strigose, densely stipitate-glandular.

in 5–7 series, outer ovate to deltate (2–5 × 0.6–1.7 mm), inner lanceolate, unequal, abaxial faces sparsely to densely hispid or stipitate-glandular (in green zone).

10–110+, in corymbiform arrays, becoming paniculiform with age, branches ascending, usually relatively short compared to plant height.

(discoid) 1–15 per branch, in corymbiform, openly paniculiform, or racemiform arrays.

dimorphic, (ray) 2–5 mm, faces glabrous or slightly strigose on angles, (disc) 4–6 mm, faces moderately to densely strigose;

pappi 0 (ray) or (disc) stramineous to rusty brown, outer bristles 0.4–0.7 mm, inner 6–9 mm, longest weakly clavate.

monomorphic, obconic, compressed, 2–5 × 0.35–1.6 mm, ribs 5–10, faces sparsely strigose;

pappi tan, outer of linear scales 0.1–0.5 mm (not obvious), inner of 30–40 bristles 4.5–6.4, longest weakly clavate.

= 18.

= 18.