Flora of North America species comparison

glabrous or sparsely pilose.

hirtellous.

basal and proximal cauline (arising from separated nodes) 1-nerved, linear to linear-lanceolate, 100–300 × 1–2(–2.5) mm, gradually or abruptly reduced distally, essentially glabrous, gland-dotted (proximal margins sometimes ciliate).

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.

(ascending) 1–7 mm.

0.

turbinate-campanulate, 5–7 × 4–5 mm.

cylindric, 8–12 × 3.5–5 mm.

4–6;

corolla tubes glabrous inside.

3–4;

corolla tubes glabrous inside.

in 2–3(–4) series, lanceolate to oblong or elliptic-oblong, unequal, essentially glabrous, margins with (pinkish purple) hyaline borders, apices usually rounded-retuse and minutely involute-cuspidate to apiculate.

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

in compact, racemiform arrays.

(appressed, overlapping) in dense, spiciform arrays.

2.5–4 mm;

pappi: lengths ± equaling corollas, bristles barbellate.

(3–)4–6 mm;

pappi: lengths ± equaling corollas, bristles barbellate.

globose.

globose to elongate.

= 20.