Flora of North America species comparison

glabrous.

moderately to densely strigoso-hirtellous.

basal and proximal cauline 1-nerved, linear to linear-lanceolate, 80–200 × 1–3(–4, –6) mm, gradually reduced or abruptly reduced on distal 1/2 of stems, essentially glabrous.

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).

0 or (ascending) 1–12 mm.

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

turbinate-cylindric, 5–7(–9) × 3–4 mm.

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

4–5(–6);

corolla tubes glabrous inside.

7–12;

corolla tubes pilose inside.

in 3–4 series, oblong to oblong-obovate, strongly unequal, essentially glabrous, margins with hyaline borders, apices rounded.

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 loose to dense, spiciform arrays (internodes to 8 mm).

in loose, (columnar) racemiform arrays.

3–3.5 mm;

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

2.5–2.8 mm;

pappi: lengths equaling or surpassing corollas, bristles barbellate.

globose (fibrous roots often densely covering whole structure).

globose to depressed-globose.

= 20, 60.