Flora of North America species comparison

green to reddish brown when young, branched, glabrous or sparsely hairy (sometimes tomentulose), often gland-dotted (sessile).

ascending to spreading;

blades filiform to narrowly oblong (adaxially flat to sulcate), 20–70 × 0.5–4 mm, midnerves evident abaxially, apices acute, sometimes mucronate, faces glabrous or sparsely hairy, often gland-dotted (sessile) and appearing pustular;

axillary leaf fascicles sometimes present.

3–15 mm (bracts usually 0).

narrowly campanulate, 8–11 × 7–12 mm.

0–5;

laminae elliptic, 8–12 × 1.5–3 mm.

4–14;

corollas 7–11 mm.

17–36 in 3–6 series, green to tan, ovate to linear-lanceolate, 3.5–11 × 0.8–2 mm, subequal, herbaceous or herbaceous-tipped, mid and inner chartaceous, midnerves evident at least on distal 1/2, (margins ciliate) apices acute to acuminate or cuspidate, abaxial faces glabrous or hairy, sometimes gland-dotted, resinous.

in (leafy) racemiform to narrowly paniculiform arrays (2–15 cm).

tan to reddish brown, narrowly elliptic, 6–10 mm, glabrous or apically villous;

pappi tan to reddish brown, 6–9 mm.

= 18.