Flora of North America species comparison

1–10+, erect, glabrous.

1–5+, erect, straight, moderately hairy in arrays.

basal and proximal cauline usually withering by flowering (other rosettes may be present), tapering to long, winged petioles, blades often recurved, linear- lanceolate or -oblanceolate, 100–240 × 8–16 mm, folded along midrib (V-shaped in cross section), bases usually with (2–)3–8 prominent lateral nerves, apices acute to obtuse, faces glabrous;

mid to distal cauline sessile, blades recurved, linear-lanceolate, 50–70 × 8–11 mm, reduced distally, folded, bases with prominent lateral nerves.

basal withering by flowering;

proximal cauline subpetiolate or sessile, tapering to broadly winged petiole-like bases, blades lanceolate, 110–180 × 2–35 mm, margins serrate (with 7–15 teeth), apices acuminate, abaxial faces sparsely hairy along nerves, adaxial glabrous or sparsely hairy;

distal cauline sessile, blades narrowly elliptic, 60–110 × 11–15 mm, margins entire to slightly serrate (teeth 0–6), apices acuminate-cuspidate, faces glabrous or sparsely hairy.

2.8–4 mm, moderately short-hispido-strigose, lanceolate bracteoles 0–1.

1–5 mm, moderately strigose;

bracteoles linear, 0–2.

narrowly campanulate, 4.5–6 mm.

campanulate 6.4–8.5(–9) mm.

7–9;

laminae 4.5–5.5 × 0.4–0.5 mm.

5–8;

laminae 2.3–4.5 × 1–1.5 mm.

6–10;

corollas 4.5–5.2 mm, lobes 0.7–1.8 mm.

(5–)6.2–8.1(–12);

corollas (2.8–)3–3.3(–3.9) mm, lobes (1.3–)1.5–1.8(–2.1) mm.

(14–18) in 3–4 series, unequal, obtuse, broad, striations weak, obtuse to rounded, glabrous.

in 3–4 series, unequal, 3–10-nerved, acute to obtuse;

outermost linear-lanceolate to narrowly ovate, 1.7–2.4 mm, innermost linear-oblong, 4–6 mm.

30–450 in corymbiform to somewhat paniculiform with rounded corymbiform branches (robust plants) arrays, branches and peduncles strigillose.

80–400 (usually 4–10 per branch) in short axillary and terminal racemiform/paniculiform arrays 11–43 cm.

1.5–2.2 mm, glabrous;

pappi 3.5–4 mm (apically clavate).

(narrowly obconic) 1–1.7(–2) mm, moderately to densely strigillose;

pappi (3.4–)4–5 mm.

= 18.

= 90.