Flora of North America species comparison

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

1–10+, ascending to erect, glabrous or sparsely puberulent.

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 or sometimes serrate, apices acute;

basal withering by flowering, petiolate, blades narrowly lanceolate, 60–200 × 10–20 mm, attenuate or cuneate, margins usually entire, sometimes serrate, apices acute, faces glabrous or sparsely puberulent;

proximalmost cauline sometimes withering by flowering, sessile, blades narrowly lanceolate, 50–150 × 8–25 mm, bases cuneate, often auriculate, apices acute;

distal sessile, blades linear to narrowly lanceolate, 20–120 × 3–20 mm, bases cuneate, often auriculate, apices acute.

sparsely hairy, bracts 0–3, lanceolate.

sparsely hairy, bracts linear to lanceolate.

campanulate, 6–16(–20) mm.

campanulate, 5–8 mm.

15–60;

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

20–40;

corollas white to pink, laminae 7–15 × 1–2 mm.

50–150;

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

35–60+;

corollas yellow, 4.5–5 mm, lobes triangular, 0.5–0.75 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 3–5 series, often spreading, oblanceolate (outer) to linear (inner), subequal, outer indurate less than 1/2, bases outer variable, inner scarious, margins entire, scabrous to ciliolate, green zones oblanceolate to elliptic, apices acute to obtuse, often spreading, faces glabrous or sparsely puberulent.

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

in racemiform to narrow, paniculiform arrays, branches usually to 10 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, 2.5–3.5 mm, 1–2-nerved, faces hairy;

pappi white, 5–6 mm.

= 16, 32, 48, 64.