Flora of North America species comparison

glabrous or sparsely pilose.

moderately to densely strigoso-hirtellous.

basal and proximal cauline (arising from separated nodes) 1-nerved, linear to linear-lanceolate, 100–300 × 1–2(–2.5) mm, gradually or abruptly reduced distally, essentially glabrous, gland-dotted (proximal margins sometimes ciliate).

basal and proximal cauline 1-nerved, narrowly oblanceolate to linear-oblanceolate, 90–180 × 2–4(–7) mm, gradually or abruptly reduced distally, essentially glabrous (proximal margins sparsely ciliate).

(ascending) 1–7 mm.

(divergent-ascending, initially diverging at angles of 45–90°) 10–25(–30) mm.

turbinate-campanulate, 5–7 × 4–5 mm.

turbinate-campanulate, (5–)6–7.5 × 5–7 mm.

4–6;

corolla tubes glabrous inside.

7–12;

corolla tubes pilose inside.

in 2–3(–4) series, lanceolate to oblong or elliptic-oblong, unequal, essentially glabrous, margins with (pinkish purple) hyaline borders, apices usually rounded-retuse and minutely involute-cuspidate to apiculate.

in (2–)3–4(–5) series, broadly obovate (outer) to broadly oblong-obovate, strongly unequal, sparsely strigoso-villous (outer) or essentially glabrous, margins with (pinkish purple) hyaline borders, sometimes slightly erose, usually densely ciliate, apices rounded to subtruncate.

in compact, racemiform arrays.

in loose, (columnar) racemiform arrays.

2.5–4 mm;

pappi: lengths ± equaling corollas, bristles barbellate.

2.5–2.8 mm;

pappi: lengths equaling or surpassing corollas, bristles barbellate.

globose.

globose to depressed-globose.