Flora of North America species comparison

1, erect to arching, light to dark brown, soft-hairy, hairs ascending- to spreading- stipitate-glandular distally.

1–5+, ascending to erect, glabrous or sparsely puberulent.

(dark green) thin, almost membraneous;

basal early deciduous, sessile or subpetiolate, blades spatulate to obovate, 80–140 × 20–30 mm, bases cuneate, margins entire to ± serrate, scabrous, apices acute;

proximal cauline withering by flowering, sessile, blades panduriform, (20–)30–70(–110) × 10–30(–35) mm, bases auriculate-clasping, margins entire (flat), sparsely villoso-ciliate, apices acute, faces finely sparely villous or scabrous, stipitate-glandular;

distal sessile, blades (rugose-veined when fresh) ovate to lanceolate, 75–125(–140) × 15–35(–40) mm, bases strongly cordate-clasping to auriculate-amplexicaul, margins entire (± undulate), apices acute, acuminate to merely mucronate, faces sparsely strigose, moderately so along veins, sparsely to moderately stipitate-glandular.

thin, margins entire or sometimes serrate, apices acute to obtuse, faces usually glabrous, sometimes sparsely hairy;

basal usually persistent, petiolate to subpetiolate, blades broadly elliptic to obovate, 30–200 × 8–25(–30) mm, bases attenuate, margins entire or sometimes serrate, apices acute to obtuse;

proximal cauline sessile or subpetiolate, blades elliptic to obovate, 35–120 × 8–25 mm, bases attenuate or cuneate to rounded, sometimes ± clasping, apices acute;

distal sessile, reduced distally, bases cuneate, apices acute.

short (less than 4 cm), strigose, stipitate-glandular, bracts linear-lanceolate, ascending-appressed, grading into phyllaries.

sparsely hairy, bracts 0–3, lanceolate.

cylindric, 5.5–7.5(–8) mm.

campanulate, 6–16(–20) mm.

9–17;

corollas light to dark reddish purple, laminae 10–18(–20) × 1–3 mm.

15–60;

corollas violet to purple, laminae 8–18(–20) × 1–2 mm.

15–35;

corollas white with purple lobes, 6–8 mm, lobes triangular, 1–1.5 mm.

50–150;

corollas yellow, 4–7 mm, lobes triangular, 0.4–1 mm.

in 4–6 series, linear-lanceolate, unequal, bases (tan) ± indurate in proximal 1/3–1/2, margins hyaline, erose, distally scabro-ciliolate to ciliolate, green zones covering distal 1/2, apices outer obtuse to acute, inner acuminate, purplish, faces sparsely strigillose, usually moderately to densely stipitate-glandular, rarely sparsely so.

in 4–6 series, oblanceolate or oblong (outer) to lanceolate or linear (inner), subequal or unequal (outer exceeding inner), bases outer foliaceous, inner indurate, margins entire, green zones elliptic to lanceolate, apices acute to rounded, faces glabrous or puberulent.

in crowded, paniculiform arrays, branches often initially patent then ascending.

borne singly or in paniculiform arrays, branches ascending, up to 25 cm.

dark brown to black, obovoid, not compressed, 2.5–4 mm, 7–10-nerved, faces densely strigose along ribs;

pappi tan to tawny, sometimes slightly purplish-tinged, 6–8 mm.

brown, cylindric to obovoid, not compressed, 2.5–4 mm, 3–4-nerved, faces hairy;

pappi white to tawny, 5–8 mm.

= 20.