Flora of North America species comparison

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

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

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.

thin, margins entire, apices acute, faces glabrous or scabridulous;

basal persistent or withering by flowering, petiolate, blades oblanceolate, 50–150 × 10–20 mm, bases attenuate or cuneate;

proximal cauline sessile, blades elliptic to oblanceolate, 80–200 × 10–25 mm, bases cuneate, auriculate;

distal sessile, 40–80 × 7–20 mm, reduced distally.

sparsely hairy, bracts 0–3, lanceolate.

sparsely to densely hairy, bracts 3–10, acute, lanceolate to linear, bases auriculate.

campanulate, 6–16(–20) mm.

campanulate, 5–10 mm.

15–60;

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

25–45;

corollas violet, laminae 9–15 × 1–2.5 mm.

50–150;

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

(50–)70–80;

corollas yellow, 5–6 mm, lobes triangular, 0.5–0.8 mm.

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 4–5 series, narrowly oblong or linear (outer) to linear (inner), unequal, bases scarious, margins entire, sometimes proximally ciliate, green zones linear, apices acute, faces glabrous.

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

in paniculiform arrays, branches numerous, 10–45 cm.

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

pappi white to tawny, 5–8 mm.

brown, cylindric to obovoid, not compressed, 3–3.5 mm, 3–4-nerved, faces hairy;

pappi white, 4.5–5 mm.

= 16, 32.