Flora of North America species comparison

erect to ascending, green when young, fastigiately branched, glabrous or sparsely hairy, gland-dotted, resinous.

(crowded) usually ascending to spreading;

blades oblanceolate to oblong (flat to slightly concave), 25–70 × 3–12 mm, midnerves evident abaxially, apices acute, faces glabrous or sparsely hairy, gland-dotted (in pits), resinous;

axillary fascicles usually absent.

1–5 mm (bracts 0–5, scalelike).

turbinate to subcampanulate, 4–6 × 3.5–4.5 mm.

0.

7–15;

corollas 4–5 mm.

18–24 in 3–4 series, tan, narrowly triangular to lanceolate, 1–5 × 0.5–1 mm, unequal, mostly chartaceous, midnerves raised, evident, usually uniform in width, sometimes slightly dilated apically, apices acute, abaxial faces glabrous or sparsely puberulent, resinous.

in rounded, cymiform arrays (to 9 cm wide).

tan to brown, narrowly ellipsoid, 2–3 mm, moderately hairy to sericeous;

pappi off-white to brown, 4–5 mm.

= 18.