Flora of North America species comparison

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

erect to spreading, green when young, becoming tan, branched proximally, often with scattered, crinkled hairs and short- stipitate-glandular hairs.

blades ascending, sometimes spreading when older, filiform to narrowly oblanceolate (adaxially sulcate to concave), 10–20 × 1–2 mm, midnerves not evident, apices acute, sometimes apiculate, faces glabrous, regularly gland-dotted (in circular, deep pits), resinous;

axillary leaf fascicles sometimes present, shorter than subtending leaves.

mostly erect or ascending;

blades oblanceolate to narrowly spatulate, 20–40 × 2–3(–5) mm, midnerves evident, apices acute to acuminate, faces short-stipitate-glandular, sometimes gland-dotted (sessile), resinous;

axillary fascicles of 1–7 reduced leaves often proximally present, distally absent.

3–15 mm (bracts 3–20+, mostly leaflike, distal scalelike).

1–15 mm (bracts 0–3, usually resembling phyllaries).

turbinate, 3–5 × 3–5 mm.

narrowly campanulate, 12–15 × 4.5–5.5 mm.

3–6;

laminae 4–5 × 1–2 mm.

0.

6–16;

corollas 5–6 mm.

10–16;

corollas 9.1–11.5 mm.

12–20 in 3–4 series, tan, linear to lanceolate, 1–3.5 × 0.5–1 mm, unequal, mostly chartaceous, sometimes herbaceous-tipped, erect, midnerves raised, somewhat expanded apically, subapical resin ducts usually present, (margins scarious to narrowly membranous, glabrous or ciliate) apices erect, acute, sometimes apiculate, abaxial faces glabrous.

18–24 in (3–)4 series, tan, ovate or lanceolate to elliptic, 4–11 × 0.6–1.2 mm, subequal, mostly chartaceous, midnerves raised, evident, apices acute to cuspidate, herbaceous-tipped, abaxial faces resinous.

in irregular cymiform arrays (to 7 cm wide).

usually in paniculiform or cymiform arrays, sometimes borne singly.

tan to brown, turbinate to narrowly oblanceolate, 3.5–4 mm (ribs ca. 5), villous;

pappi off-white to brown, 3.5–5 mm.

tan to reddish, ellipsoid, 6–10 mm, glabrate or apically sparsely hairy;

pappi off-white to brown, sometimes reddish, 7–9 mm.

= 18.

= 18.