Flora of North America species comparison

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

ascending, green becoming tan, glabrous or puberulent, resin-dotted to resinous.

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.

ascending to spreading;

sessile;

blades with faint midnerves, linear to oblanceolate, 10–40 × 1–2.5 mm, flat or sulcate, usually not twisted, margins eciliate or sparsely puberulent, apices acute to apiculate, faces usually glabrous, sometimes puberulent, usually gland-dotted, resinous.

obconic, 9–15 × 3–5 mm.

cylindric to obconic, (5–)6–8 × 2–4 mm.

5–6;

corollas 7–11 mm, lobes 1–2.1 mm;

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

5–7;

corollas 4.5–6.5 mm, lobes 1.2–1.7 mm;

style branches 2.5–3.8 mm, appendages 0.8–1.2 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.

12–18 in 3–4 series, in weak vertical ranks, mostly tan, greenish apically, midnerves evident and ± expanded distally, ovate to elliptic, unequal, 1.5–7 × 1–1.8 mm, chartaceous, weakly keeled, margins scarious, ciliate to lacerate, apices acute to obtuse-rounded, faces glabrous or gland-dotted.

in densely cymiform arrays, not overtopped by distal leaves.

in dense cymiform arrays (to 5 cm wide), sometimes overtopped by distal leaves.

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

pappi whitish tan, 5.5–7.5 mm.

reddish brown, cylindric to turbinate, 4–5 mm, 5–10-nerved, faces glabrous;

pappi tan (fine), 3.5–5 mm.

= 18.

= 18.