Flora of North America species comparison

glabrous or sparsely to moderately pilose distally or throughout.

strigoso-puberulent.

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).

basal and proximal cauline 1(–3)-nerved, linear-lanceolate to linear-oblanceolate, 120–250 × 2–3(–5) mm, abruptly reduced on distal 1/2–2/3 of stems, sparsely pilose (abaxial faces), gland-dotted.

0 or (ascending) 1–10(–80) mm.

0 or 1–5 mm.

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

cylindro-campanulate, 10–13 × 5–6(–7) mm.

(6–)7–12(–13, mostly 9–12 in Del.

10–12;

corolla tubes glabrous inside.

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.

in 3–4(–5) series, outermost narrowly triangular, unequal, sparsely fine-pilose to glabrate, margins without hyaline borders, ciliate, apices (loosely divergent) acute to acuminate (innermost sometimes obtuse and short-acuminate).

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

in loose, spiciform arrays (internodes 1–15 mm).

(2.5–)3–4 mm;

pappi: lengths ± equaling corollas, bristles barbellate.

4.2–4.5 mm;

pappi: lengths equaling corollas, bristles barbellate or proximally plumose.

globose.

globose to subglobose.

N.J.);

corolla tubes pilose inside.

= 20.