Flora of North America species comparison

green, becoming whitish tan, ± ridged from leaf bases, densely puberulent.

ascending, green, ± puberulent, stipitate-glandular.

erect or closely ascending;

sessile;

blades with evident midnerves, linear to oblanceolate or narrowly oblong, 7–30 × 1.5–7 mm, flat to keeled, apices acute (often apiculate), faces glabrous or puberulent, sometimes sparsely stipitate-glandular.

erect to closely ascending;

sessile;

blades with ± evident midnerves, linear to narrowly elliptic, 7–20 × 0.7–1.5 mm, sulcate, sometimes apiculate, apices acute, faces moderately puberulent, uniformly stipitate-glandular.

obconic, 9–15 × 3–5 mm.

subcylindric, 9–11 × 2.5–3.5 mm.

5–6;

corollas 7–11 mm, lobes 1–2.1 mm;

style branches 2.4–3.3 mm, appendages 1.5–2 mm.

5;

corollas 5.5–7.5 mm, lobes 0.9–1.5 mm;

style branches 2.7–3.2 mm, appendages 1–1.7 mm.

20–25 in 4–6 series, in 5 strong vertical ranks, tan, often with green and/or purplish markings, midnerves evident throughout and ± expanded apically, lanceolate to elliptic, 3–8 × 0.5–1.5 mm, unequal, outer often herbaceous, inner scarious, strongly keeled, apices acute to acuminate, flat, faces puberulent.

± 20 in 4–5 series, in 4–5 strong vertical ranks, tan, often with green or dark subapical splotch, midnerves often obscure, linear or lanceolate to elliptic, 2–9 × 0.5–1.3 mm, unequal, outer ± herbaceous, inner chartaceous, strongly keeled, apices acute to rounded, tip cupped, faces of outer glabrous or puberulent.

in densely cymiform arrays, not overtopped by distal leaves.

in small cymiform to racemiform arrays.

tan, subcylindric (tapering proximally), ± flattened, 5–6.5 mm, faces glabrous, sparsely glandular distally;

pappi whitish tan, 5.5–7.5 mm.

tan, elliptic, 4.2–6 mm, mostly 5-ribbed, faces glabrous, sparsely glandular;

pappi tan, 6–7.5 mm.

= 18.

= 18.