Flora of North America species comparison

1–5, erect or ascending, branched mostly distally, glabrous.

proximal oblanceolate to lance-linear, sometimes pinnately lobed, not fleshy, ultimate margins usually dentate, faces glabrous;

distal reduced (margins 2–4-dentate near bases or entire).

narrowly campanulate, 4–8+ × 2–4+ mm.

not bristly.

(19–67);

corollas pale yellow, 4–7.4 mm;

outer ligules exserted 1–3 mm.

8–15+ in 2+ series, lance-linear to linear, ± equal, hyaline margins 0.05–0.3 mm wide, abaxial faces glabrous.

of 5–12, lance-deltate to lanceolate bractlets, hyaline margins 0.05–0.2 mm.

fusiform or prismatic, 1.2–1.8 mm, ribs extending to apices, 5 more prominent than others;

persistent pappi of 15–24+, needlelike teeth plus 1 bristle.

70–100% 3-porate, mean 25 µm. 2n = 14.