Flora of North America species comparison

1, erect (straight, stout), glabrous or hairy.

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

thin, scabrous, apices mucronate, abaxial faces glabrous (vein areoles indistinct, elongate), adaxial glabrous or sparsely scabrous (var. hesperium);

basal withering by flowering, petiolate to subpetiolate (petioles winged, ciliate, bases dilated, sheathing), blades elliptic-oblanceolate or obovate to suborbiculate, 10–80 × 5–20 mm, cuneate to attenuate, margins crenate-serrate, apices acute to obtuse or rounded;

proximal cauline withering by flowering, sessile or subsessile, blades lance-ovate or oblanceolate to linear-lanceolate, (40–)50–150 × (3–)10–20(–35) mm, progressively reduced distally, bases cuneate, ± decurrent, margins serrate, apices acute to acuminate;

distal sessile, blades oblanceolate to linear, 30–100(–140) mm, only slightly reduced distally, bases cuneate, margins entire.

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.

0.5–5 cm, ± pilose, bracts 1–3(–5), linear-oblanceolate to -lanceolate, foliaceous, ciliate.

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

campanulate to cylindric, 3–8 mm.

campanulate, 8.5–12 mm.

16–50;

corollas white to pinkish or pale blue-violet, laminae 3–10(–14) × 0.5–1.3 mm.

14–35;

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

(13–)20–40(–52);

corollas yellow becoming purple, 2.8–5.8 mm, tubes shorter than funnelform throats, lobes sometimes ± spreading, triangular, 0.4–1.2 mm.

25–35;

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

in (3–)4–6 series, appressed or slightly spreading, linear-lanceolate to linear (innermost), sometimes slightly dilated distally, ± strongly unequal to subequal (var. hesperium), bases indurate 1/4–1/2, margins scarious, erose, hyaline, sparsely ciliolate, green zones lanceolate to linear-lanceolate, outer sometimes foliaceous (particularly var. hesperium), apices acute to acuminate (outer) or acuminate to caudate (inner), mostly mucronulate, abaxial faces glabrous, adaxial sparsely strigillose.

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 ample or diffuse to narrow, elongate, leafy, paniculiform arrays, branches ± ascending, rarely secund, branch leaves often longer than pedicels.

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

gray or tan, obovoid, ± compressed, 1.5–2 mm, 4–5-nerved, faces sparsely strigillose;

pappi white to sordid or tawny, 5.5–6 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.

= 30, 60.