Flora of North America species comparison

glabrous or densely piloso-puberulent.

piloso-puberulent to hirsute.

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-oblanceolate, 120–300 × 3–8 mm, gradually reduced distally to ± midstem, abruptly reduced to ± uniform bracts distally, essentially glabrous, gland-dotted (margins sometimes sparsely ciliate).

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

0 or 1–5(–10) mm.

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

cylindro-campanulate, 8–10 × 4–5 mm.

(4–)5–8;

corolla tubes glabrous inside.

6–10;

corolla tubes glabrous 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(–5) series, ovate to oblong-oblanceolate or oblong-lanceolate, strongly unequal, usually essentially glabrous, sometimes sparsely strigose to pilosulous, margins with hyaline borders, ciliolate, apices acute (inner with slightly subterminal, ‘rolled’ apicula), ciliolate.

in dense, spiciform arrays.

in dense, spiciform arrays.

3.8–4.5(–5) mm;

pappi: lengths ± equaling corollas, bristles barbellate.

3–3.5 mm;

pappi: lengths ± equaling corollas, bristles barbellate.

globose, sometimes becoming elongate rhizomes.

elongated into rhizomes, irregularly shaped (sometimes with thickened, fibrous roots).

= 20.