Flora of North America species comparison

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

1–5, ascending to erect, glabrous.

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;

basal withering by flowering, petiolate, blades linear to narrowly lanceolate, 100–150 × 5–10 mm, attenuate or cuneate, margins entire, apices acute, faces usually glabrous;

proximalmost cauline usually withering by flowering, sessile, blades linear to narrowly lanceolate or oblanceolate, 50–90 × 5–8(–20) mm, bases attenuate or cuneate;

distal sessile, blades 40–80 × 5–8(–15) mm, bases cuneate.

sparsely hairy, bracts 0–3, lanceolate.

glabrous or sparsely villous, bracts 5–15, sessile, lance-linear to lanceolate, margins sometimes spiculate.

campanulate, 6–16(–20) mm.

campanulate, 5–8 mm.

15–60;

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

20–45+;

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

50–150;

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

35–70+;

corollas yellow, 5–7 mm, lobes triangular, 0.8–1.5 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 (outer) to linear (inner), unequal (outer at least 3 times longer than wide), bases (outer) indurate 1/2 or less, margins scarious proximally, eciliate or ciliolate, green zones lanceolate to elliptic, apices acute to acuminate, faces glabrous.

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

in paniculiform arrays, branches some at least 25 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, 3–4 mm, 2–4-nerved, faces glabrous or hairy;

pappi white, 5–7 mm.

= 16, 64.