Flora of North America species comparison

hirtellous.

glabrous (often sparsely sessile-glandular).

basal and proximal cauline 1-nerved, spatulate-oblanceolate to narrowly oblanceolate, 40–150(–180) × 4–8(–11) mm, abruptly reduced (linear, 1–2 mm wide), then gradually reduced distally, essentially glabrous or hirtellous (sometimes mostly along abaxial midveins), gland-dotted.

basal (often withering before flowering), 1- or 3–5-nerved, linear-elliptic, linear-spatulate, or linear-oblanceolate, (170–)200–400 × 3–10 mm, gradually reduced distally, essentially glabrous, gland-dotted (proximal margins pilose-ciliate).

0.

0 or (spreading-ascending) 1–2 mm.

cylindric, 8–12 × 3.5–5 mm.

turbinate-campanulate, (7–)8–10 × (8–)9–11(–12) mm.

3–4;

corolla tubes glabrous inside.

9–17;

corolla tubes pilose inside.

in 3(–4) series, oblong to oblong-lanceolate, unequal, usually glabrous, rarely minutely puberulent, margins with hyaline borders, apices acute to acuminate.

in (3–)4(–5) series, ovate to oblong, obovate, or spatulate, weakly unequal, essentially glabrous, margins with (pinkish purple) hyaline borders, erose to lacerate, ciliolate, apices broadly rounded.

(appressed, overlapping) in dense, spiciform arrays.

in dense, spiciform arrays.

(3–)4–6 mm;

pappi: lengths ± equaling corollas, bristles barbellate.

ca. 4 mm;

pappi: lengths ± equaling corollas, bristles barbellate.

globose to elongate.

globose, irregularly cylindric, narrowly ovoid, or fusiform and caudexlike.

= 20.