Flora of North America species comparison

hirtellous.

stipitate-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 and proximal cauline 1-nerved, linear to linear-lanceolate, 60–110 × 1.5–4(–4.5) mm, gradually or abruptly reduced on distal 1/2 of stems, stipitate-glandular.

0.

0.

cylindric, 8–12 × 3.5–5 mm.

cylindro-turbinate, 8–12 × 3–5 mm.

3–4;

corolla tubes glabrous inside.

3–4(–5);

corolla tubes glabrous or glabrate 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 series, (green, rarely purplish) oblong-lanceolate to lanceolate-triangular, unequal, densely glandular (mixture of sessile-sunken and slightly elevated glands), margins without hyaline borders, apices broadly to narrowly acute or acuminate (sometimes with indurate mucros).

(appressed, overlapping) in dense, spiciform arrays.

in dense, (cylindric) spiciform arrays.

(3–)4–6 mm;

pappi: lengths ± equaling corollas, bristles barbellate.

5–6 mm;

pappi: lengths ± equaling corollas, bristles plumose.

globose to elongate.

subglobose to depressed-globose.

= 20.

= 20.