Flora of North America species comparison

usually crowded, green;

blades 3-nerved (only midnerves prominent), linear, 30–80 × 2–3 mm, faces glabrous or puberulent, often minutely stipitate-glandular, ± resinous;

distalmost overtopping arrays.

crowded, gray;

blades 1-nerved, linear, 20–40 × ca. 1 mm, faces tomentose, eglandular;

distalmost overtopping arrays.

9–12 mm.

9.5–12 mm.

8–20;

corollas yellow, 7.9–10 mm, tubes sparsely hairy, throats gradually dilated, lobes 1.4–2.1 mm.

5–7;

corollas pale yellow, 8–10.7 mm, tubes hairy, throats gradually dilated, lobes 1.2–1.7 mm.

10–15, mostly chartaceous, outermost sometimes herbaceous-tipped, apices erect, attenuate.

12–20, mostly chartaceous, apices spreading, acuminate.

usually 5–12+ in racemiform arrays.

5–10+ in compact, racemiform arrays, or terminal glomerules.

= 18.

= 18.