Flora of North America species comparison

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

1–5+, ascending to erect, proximally glabrous, distally usually glabrous or sparsely puberulent, rarely densely hirsute.

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 often serrate, apices acute, faces glabrous or sparsely puberulent;

basal withering by flowering, petiolate to subpetiolate, blades oblanceolate to narrowly elliptic or linear, 50–150 × 3–25 mm, bases attenuate, margins entire or sometimes serrate, apices acute;

proximalmost cauline withering by flowering, subpetiolate or sessile, blades obovate or oblanceolate to narrowly elliptic, rarely linear, 50–150 × 4–35 mm, bases attenuate or cuneate;

distal sessile, blades 30–100(–130) × 3–15(–30) mm, bases cuneate, rounded or sometimes ± auriculate, margins sometimes serrate, scabrous.

sparsely hairy, bracts 0–3, lanceolate.

sparsely hairy, bracts 1–10, lance-oblong to linear, sometimes clasping, margins scabrous.

campanulate, 6–16(–20) mm.

campanulate, 5–8(–10) mm.

15–60;

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

15–45;

corollas violet, laminae 10–16(–20) × (1–)1.5–2.5 mm.

50–150;

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

50–75;

corollas yellow becoming reddish, 4–7 mm, lobes triangular, 0.5–1 mm, glabrous.

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 4–6 series, appressed or squarrose, oblong or narrowly oblanceolate or linear (outer) to linear (inner), unequal to subequal (outer shorter than or equal to inner, often less than 3 times as long as wide), bases outer indurate less than 1/2 (some foliaceous), inner scarious, margins entire, sometimes ciliate, green zones obovate to elliptic, apices acute to obtuse, faces usually glabrous, rarely sparsely puberulent.

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

in open, corymbiform, paniculiform, or racemiform arrays, branches 5–30 cm.

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

pappi white to tawny, 5–8 mm.

brown or purplish, cylindric to obovoid, not compressed, 2–4 mm, 3–6-nerved, faces hairy;

pappi whitish to tawny or reddish, 4.5–8 mm.

= 48, 64, 80, 96.