Flora of North America species comparison

sparsely to densely puberulent, puberulent-villous, or strigoso-puberulent.

glabrous.

basal and proximal cauline 1-nerved, narrowly oblanceolate to spatulate-lanceolate, 90–150(–220) × 4–17(–24) mm, gradually reduced distally to near midstem, then abruptly reduced, linear or narrowly lanceolate, ascending to nearly erect, bractlike, sparsely to densely puberulent, ± gland-dotted.

basal scalelike (usually withering before flowering), cauline 1-nerved, mostly linear, 12–20(–230) × 1.2–3(–4.5) mm, gradually reduced beyond midstem, essentially glabrous (margins ciliate).

usually (5–)8–15(–30) mm.

(5–)12–40 mm.

campanulate to turbinate-campanulate, 10–15 × 13–18 mm.

campanulate-turbinate, 10–19(–23) × (8–)10–17(–21) mm.

30–70;

corolla tubes glabrous inside.

(11–)14–21(–25);

corolla tubes glabrous inside.

in (3–)4–5 series, oblong-obovate to oblong-spatulate, strongly unequal, essentially glabrous, margins with (purple) hyaline borders, erose to lacerate or irregular, apices broadly rounded to truncate.

in ± 3–4 series, (green or purple) lanceolate to linear-oblong, unequal, essentially glabrous or sparsely pilose, margins with or without hyaline borders, ciliate, apices long- to short-acuminate.

(4–21) in open, racemiform arrays (terminal heads sometimes maturing first and larger).

borne singly or (2–10) in subcorymbiform arrays.

5–7 mm;

pappi: lengths ± equaling corollas, bristles barbellate.

(3.5–)5–7 mm (glabrous);

pappi: lengths ± 1/2–2/3 corollas, bristles barbellate.

subglobose (often knotty, densely fibrous-rooted).

subglobose to depressed hemispheric.

= 20.