Flora of North America species comparison

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

glabrous or sparsely to moderately pilose distally or throughout.

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 and proximal cauline 1-nerved, narrowly oblanceolate, 60–170(–200) × 2–7(–11) mm, abruptly to gradually reduced distally (becoming linear, spreading-ascending), essentially glabrous or sparsely pilose (abaxially), gland-dotted (proximal margins piloso-ciliate).

usually (5–)8–15(–30) mm.

0 or (ascending) 1–10(–80) mm.

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

turbinate to campanulate-cylindric, (7–)8–10 × 5–6 mm.

30–70;

corolla tubes glabrous inside.

(6–)7–12(–13, mostly 9–12 in Del.

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–)4–5(–6) series, oblong, unequal, essentially glabrous, margins with hyaline borders (0.2–0.4 mm wide), erose to lacerate, ciliolate, apices usually rounded, rarely acute.

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

in loose to dense, racemiform to spiciform arrays (internodes 1–7 mm).

5–7 mm;

pappi: lengths ± equaling corollas, bristles barbellate.

(2.5–)3–4 mm;

pappi: lengths ± equaling corollas, bristles barbellate.

subglobose (often knotty, densely fibrous-rooted).

globose.

N.J.);

corolla tubes pilose inside.

= 20.

= 20.