Flora of North America species comparison

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

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

thin, margins entire, apices acute, faces glabrous or sparsely puberulent;

basal persistent, petiolate, blades narrowly elliptic to obovate, 50–150 × 3–15 mm, attenuate, margins entire;

proximal cauline sessile or subpetiolate, blades linear to narrowly elliptic, 50–150 × 2–15 mm, bases attenuate or cuneate;

distal sessile, blades 30–60 × 2–10 mm, reduced distally, bases cuneate to rounded.

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

basal often withering by flowering, petiolate, blades broadly elliptic to obovate, 5–200 × 10–35 mm, attenuate or cuneate, margins entire, apices acute;

proximalmost cauline sometimes withering by flowering, sessile, blades oblanceolate to obovate, 70–120 × 15–50 mm, bases strongly clasping, enlarged and usually narrowed distally, usually prominently auriculate, margins entire, apices acute;

distal sessile, blades lanceolate to broadly elliptic, 30–110 × 10–30 mm, bases truncate or auriculate, margins entire.

sparsely hairy, bracts 0–3+.

sparsely to densely cinereous, bracts lanceolate.

campanulate, 5–10 mm.

campanulate, 10–20 mm.

15–40;

corollas violet, laminae 9–15 × 1–2 mm.

25–55;

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

30-80(–100);

corollas yellow, sometimes becoming reddish, 4.5–6 mm, lobes triangular, 0.5–1 mm.

60–150+;

corollas yellow, 2.5–4 mm, lobes triangular, 0.4–0.5 mm.

in 3–5 series, narrowly oblong or linear (outer) to linear (inner), unequal, bases indurate, margins entire, green zones elliptic to lanceolate, apices usually acute, sometimes obtuse, faces glabrous or ± puberulent.

in 4–5 series, broadly to narrowly lanceolate or oblanceolate (outer) to linear (inner), ± equal or outer slightly exceeding inner, bases outer foliaceous, inner scarious, margins scarious, entire or erose, green zones elliptic to lanceolate, apices acute, faces glabrous or finely hairy.

in corymbiform to paniculiform arrays, branches usually few.

borne singly or in often congested, paniculiform arrays, branches 20–30 cm.

brown, cylindric to obovoid, not compressed, 2.5–3.5 mm, ± 4-nerved, faces hairy;

pappi whitish, 5–7 mm.

brown, cylindric to obovoid, not compressed, 3–3.5 mm, 3–6-nerved, faces hairy;

pappi white, 5–9(–11) mm.

= 16, 32.