Flora of North America species comparison

1–10+, erect, glabrous.

single (sometimes purplish brown, ridged), glabrous, strigose distally 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 and proximal tapering to winged petioles, blades (basal) spatulate, 20–40 mm, (proximal) obovate to oblanceolate or elliptic, 60–150(–200) × 30–55 mm, margins serrate (teeth shallow to 5 mm), ciliate, acute to obtuse, acuminate or mucronate, faces abaxially glabrate to sparsely strigose, especially on nerves, adaxially glabrous;

mid and distal cauline sessile, lancelate or oblanceolate to elliptic, 30–100 × 20–40 mm, reduced distally, margins serrate to entire distally.

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

1–3 mm, strigose;

bracts and bracteoles lanceolate to ovate, grading into phyllaries.

narrowly campanulate, 4.5–6 mm.

campanulate, ca. 5 mm.

7–9;

laminae 4.5–5.5 × 0.4–0.5 mm.

ca. 6–10;

laminae 1.5–2.5 × 0.5 mm.

6–10;

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

ca. 10;

corollas 3.5–5 mm, lobes 1–1.5 mm.

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

in 3–4 series, appressed, strongly unequal, outer grading from ovate bracteoles, mid oblong, rounded, inner linear-oblong, acute, glabrous.

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

20–180+ (1–6 per branch), in leafy wand-paniculiform arrays (2–)10–20(–40) cm, lateral branches usually not exceeding subtending leaf bracts.

1.5–2.2 mm, glabrous;

pappi 3.5–4 mm (apically clavate).

(narrowly obconic) 2.5–3 mm, moderately strigillose;

pappi ca. 4 mm (sometimes weakly clavate).

= 18.

= 36.