Flora of North America species comparison

erect, branched distally, usually glandular-puberulent (often with longer non-glandular hairs as well).

erect (peduncles sometimes sinuous), branched distally, glabrous proximally, villous distally.

linear, 15–60 × 0.5–5 mm, (not fleshy) margins entire or 1–2-pinnately lobed, faces hairy.

linear, 3–20 × 0.5–1 mm, (± fleshy) margins entire, faces sparsely hairy.

hemispheric to obconic, 4–7 mm.

obconic to campanulate, 4–6 mm.

conic, smooth, muricate, or pitted, hairy.

subulate, papillate, glabrous.

6–15; (corollas yellow) laminae linear-oblong or oblong, 3–10 mm.

6–9;

corolla laminae broadly elliptic, 2.5–5 mm.

6–14, lanceolate to ovate, hairy.

(± persistent) usually 4–6 (in 1 series), elliptic to ovate, glabrous but for hairy apices.

black, linear to narrowly clavate, to 2.5 mm, hairy;

pappi usually of 5–6+ lanceolate to ovate scales (1–5 uniaristate), sometimes of 4–5 subulate, aristate scales, or 0.

gray, narrowly clavate, to 2 mm, sparsely hairy;

pappi usually of 1–4 translucent, white to yellowish, subulate, aristate scales (sometimes 0 in some florets within heads).

appendages elliptic, acute (style apices ± deltate with apical tufts of hairs and subapical fringes of shorter hairs).

appendages subulate.

= 8, 10.

= 16.