Flora of North America species comparison

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

ascending, green becoming tan, glabrous, 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-filiform, 10–40 × 0.5–2 mm, flat or sulcate, sometimes twisted, margins glabrous or hirtellous, apices acute to apiculate, faces glabrous.

obconic, 9–15 × 3–5 mm.

cylindric to turbinate, 5–8 × 1.5–2.5 mm.

5–6;

corollas 7–11 mm, lobes 1–2.1 mm;

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

4–5;

corollas 3.7–5.5 mm, lobes 0.8–1.5 mm;

style branches 2–2.4 mm (exserted beyond spreading corolla lobes), appendages 0.5–0.8 mm (shorter than stigmatic portion).

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.

15–20 in 3–4 series, often in vertical ranks or spirals, mostly tan, ± greenish apically, midveins rarely visible, ovate or oblong to elliptic, 1.5–5 × 0.8–1.4 mm, unequal, mostly chartaceous, sometimes ± keeled, apices acuminate to cuspidate (cusp often recurved or falcate), faces glabrous or with a few long, crooked hairs proximally and near margins, resinous.

in densely cymiform arrays, not overtopped by distal leaves.

in densely cymiform arrays (4 cm wide), distal leaves reaching into but not overtopping arrays.

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

pappi whitish tan, 5.5–7.5 mm.

reddish brown, turbinate, 3–4 mm, faces densely hairy;

pappi tan, 3.7–5 mm.

= 18.

= 18.