Flora of North America species comparison

1–5, ascending to erect, glabrous.

1–5+, erect (stout, brown), proximally ± hispid, distally sparsely strigose, distally stipitate-glandular.

thin, margins entire, apices acute, faces glabrous;

basal withering by flowering, petiolate, blades linear to narrowly lanceolate, 100–150 × 5–10 mm, attenuate or cuneate, margins entire, apices acute, faces usually glabrous;

proximalmost cauline usually withering by flowering, sessile, blades linear to narrowly lanceolate or oblanceolate, 50–90 × 5–8(–20) mm, bases attenuate or cuneate;

distal sessile, blades 40–80 × 5–8(–15) mm, bases cuneate.

stiff (dark green), greatly reduced distally, margins entire, scabrous;

basal early deciduous, sessile, blades (3-nerved) oblanceolate, 40–80 × 4–12 mm, bases attenuate, apices obtuse to acute, faces sparsely scabrous;

proximal cauline usually withered by flowering, sessile, blades oblanceolate to lanceolate-oblong, 20–60 × 5–20 mm, bases cordate-clasping, apices acute, mucronulate, faces glabrate to sparsely scabrous, stipitate-glandular;

distal sessile, blades lanceolate to oblong, 20–40 × 5–8 mm, bases cuneate, apices acute, mucronulate to white-spinulose, faces glabrous or scabrous, sparsely stipitate-glandular.

glabrous or sparsely villous, bracts 5–15, sessile, lance-linear to lanceolate, margins sometimes spiculate.

3–5 cm, short-strigose, stipitate-glandular, bracts spreading to reflexed, lanceolate-oblong, 5–10 mm, little reduced distally, grading into phyllaries.

campanulate, 5–8 mm.

campanulate, 8.5–12 mm.

20–45+;

corollas violet, laminae 10–18 × 1–2 mm.

14–35;

corollas light to reddish purple, laminae 11–15(–20) × 1.5–2.5 mm.

35–70+;

corollas yellow, 5–7 mm, lobes triangular, 0.8–1.5 mm.

25–35;

corollas yellow becoming reddish purple, 5.5–8 mm, lobes narrowly triangular, 0.7–1 mm.

in 4–5 series, narrowly oblong (outer) to linear (inner), unequal (outer at least 3 times longer than wide), bases (outer) indurate 1/2 or less, margins scarious proximally, eciliate or ciliolate, green zones lanceolate to elliptic, apices acute to acuminate, faces glabrous.

in 3–4 series, spatulate-oblanceolate, unequal, bases ± indurate, margins scarious, green zones covering distal portion, apices spreading to strongly reflexed, faces sparsely scabrous, moderately stipitate-glandular.

in paniculiform arrays, branches some at least 25 cm.

in racemiform to paniculiform arrays, branches patent or ascending with 1–5+ heads.

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

pappi white, 5–7 mm.

light brown, cylindric to narrowly obovoid, ± compressed, 3–4.5 mm, 7–10-nerved (brown), faces moderately strigose;

pappi tan, 5.5–6 mm.

= 16, 64.

= 30, 60.