Flora of North America species comparison

glabrous or densely piloso-puberulent.

stipitate-glandular.

basal and proximal cauline 3–5-nerved, linear to narrowly oblanceolate or oblanceolate, 110–220 × 4–10(–12) mm, gradually then abruptly reduced distally (bractlike proximal to heads), essentially glabrous or sparsely pilose to densely piloso-puberulent, weakly gland-dotted (bases of basal usually fibrous-persistent).

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.

usually 0, rarely (spreading to ascending) 1–2 mm.

0.

campanulate-cylindric, 7–9(–10) × 3.5–5 mm.

cylindro-turbinate, 8–12 × 3–5 mm.

(4–)5–8;

corolla tubes glabrous inside.

3–4(–5);

corolla tubes glabrous or glabrate inside.

(reflexed or curving-spreading) in 4–5 series, oblong-lanceolate, unequal, essentially glabrous or ± pilose, margins with hyaline borders, sometimes ciliate, apices usually acute to acute-acuminate (sometimes distally dilated, nearly petaloid).

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).

in dense, spiciform arrays.

in dense, (cylindric) spiciform arrays.

3.8–4.5(–5) mm;

pappi: lengths ± equaling corollas, bristles barbellate.

5–6 mm;

pappi: lengths ± equaling corollas, bristles plumose.

globose, sometimes becoming elongate rhizomes.

subglobose to depressed-globose.

= 20.