Flora of North America species comparison

erect (slender).

blades linear to narrowly lanceolate;

cauline 25–115 × 3–17 mm, bases not decurrent.

5–185 mm;

bracts 3–10, linear to linear-oblanceolate or subulate, 2–10(–15) mm.

2.5–3 × 2.5–6 mm.

20–40;

corolla white to lilac, laminae 3–6.3 mm, tubes 0.6–1.35 mm.

50–135;

corollas 1.2–2.5 mm.

in 4–6 series, subulate or linear-oblong, unequal, 6–8 merging down peduncles;

outer 1–1.8 × 0.3–0.6 mm;

inner 1.8–3 × 0.3–0.7 mm.

30–100+ in paniculiform arrays, primary branches mostly spreading;

only proximal bracts leaflike, others reduced, linear to linear-oblanceolate or subulate, 8–55 × 1–6 mm.

obovoid, 1.6–2.5 × 1–1.6 mm, wings 0.2–0.4 mm wide;

pappus awns 0.3–0.7 mm.