Flora of North America species comparison

1, erect (often with purple or purplish brown areas), glabrous or glabrate, sometimes strigillose in leaf axils.

simple or branched basally.

thin (green to dark green), margins often strigilloso-ciliolate, faces glabrous;

basal withering by flowering, long-petiolate (petiole bases sheathing), sparsely ciliate, blades ovate to oblanceolate, 10–90 × 6–14 mm, bases attenuate to cuneate, rounded, margins entire or serrulate or crenulate, apices rounded, obtuse, or acute;

proximal cauline withering by flowering, petiolate, subpetiolate, or sessile, blades narrowly lanceolate or subulate, 20–100(–200) × 1.5–10(–20) mm, bases attenuate, margins subentire, entire, or serrulate, apices acute to acuminate;

distal sessile, blades narrowly lanceolate to subulate, 5–113 × 0.5–5.5 mm, apices acuminate.

(0.2–)0.5–4 cm, bracts 4–8(–17).

cylindric to turbinate, 5–7(–8.2) mm.

5–7(–8) mm.

16–30(–54) in 1–3 series;

corollas white, pink, or lavender, laminae 1.3–7 × 0.2–1.3 mm.

21–28(–38) in (2–)3 series;

laminae white (drying white or lavender), 1.3–1.7(–2) × 0.2–0.3 mm, shorter than pappi, drying in inward curls, rarely coiling.

4–10(–13);

corollas yello, sometimes tinged with purple, 3.4–5.2 mm, throats narrowly funnelform, lobes ± spreading to erect, narrowly triangular, 0.3–0.7 mm, glabrous.

(3–)7–14, 4–4.9 mm.

in 3–5 series, broadly or narrowly lanceolate to subulate, unequal, bases indurate, margins hyaline, often purple-tinged, entire, green zones lanceolate (usually narrow, sometimes broad and covering most of distal portion), apices acute, faces glabrous.

18–24(–30), subulate to lanceolate (often broadly so), green zones broadly lanceolate, absent from proximal portion.

(10–) 30–100(–150), in open, diffuse, paniculiform arrays.

30–100 in open, diffuse arrays, secund on primary branches longer than peduncles.

light brown to purple, narrowly obovoid to fusiform, sometimes ± compressed, (1.2–)1.5–2.7(–3) mm, 5-nerved, faces sparsely strigillose;

pappi white, (3–)3.5–5.5 mm.

1.5–2.6(–3) mm;

pappi 4–5.1(–5.3) mm.

= 20.