Flora of North America species comparison

ascending, green, ± puberulent, stipitate-glandular.

ascending, green, soon becoming tan, glabrous or puberulent, sometimes resin-dotted, often resinous.

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.

ascending, spreading, or deflexed;

sessile;

blades with evident midnerves plus sometimes 1–2 pairs of smaller, collateral nerves, linear to lanceolate, 10–75 × 0.5–10 mm, flat or sulcate, often twisted, margins often undulate, sometimes ciliate, apices acute to apiculate, faces glabrous or puberulent.

subcylindric, 9–11 × 2.5–3.5 mm.

cylindric to obconic or campanulate, 4–7 × 1.5–2.5 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.

(3–)4–5(–14);

corollas 3.5–6.5 mm, lobes 0.7–1.7 mm;

style branches 2.2–3.2 mm (exserted beyond spreading corolla lobes), appendages 0.8–1.5 mm (length shorter than stigmatic portion).

± 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.

12–24 in 3–5 series, in spirals or weak vertical ranks, mostly tan, green to brown subapical patch often present, midnerves usually evident (at least distally), linear-oblong, lanceolate to elliptic or obovate to spatulate, 1–5 × 0.5–1.2 mm, unequal, chartaceous, margins scarious, eciliate or ciliolate to erose-ciliolate, flat or convex, sometimes weakly keeled, apices acute to obtuse or rounded, sometimes apiculate, flat, faces glabrous or puberulent.

in small cymiform to racemiform arrays.

in dense, rounded cymiform arrays (to 7 cm wide), not overtopped by distal leaves.

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

pappi tan, 6–7.5 mm.

tan to reddish brown, turbinate, 2.5–4.2 mm, ± 5-angled, moderately to densely hairy;

pappi tan, 3.5–6 mm.

= 18.