Flora of North America species comparison

0 or 1 (erect, 0–5 cm).

0.

mostly erect, sometimes prostrate;

petioles not purplish, margins glabrous or ciliate;

blades usually oblanceolate to spatulate, rarely linear, 1–25 cm, margins entire or lobed;

lobes 2–3 pairs, linear to spatulate, spreading to antrorse, lobules mostly 0, glabrous or densely hairy.

erect to ascending;

blades usually oblanceolate, sometimes lanceolate or obovate, 15–25 cm, margins usually toothed to lobed or pinnatifid, rarely entire, lobes 2–4 pairs, lanceolate to triangular, antrorse to spreading, lobules mostly 0, faces glabrous and glaucous or sparsely villous.

elongating after flowering, 3–60 cm in fruit, glabrous or glabrate, or basally puberulent and apically hairy to tomentose, sometimes stipitate-glandular.

± elongating after flowering, 15–65(–90) cm in fruit, glabrate, or apically pubescent or villous, ± stipitate-glandular.

cylindric to hemispheric, 1–2 cm in fruit.

obconic to campanulate, 2–4 cm in fruit.

epaleate.

epaleate.

5–100(–300);

corollas yellow, tubes 1–5 mm, ligules 2–15 × 1–3 mm;

anthers 1–4 mm.

(25–)50–150;

corollas orange or yellow, tubes 8–10 mm, ligules 6–8(–12) × 1–3 mm;

anthers 2–3(–5) mm.

in 2–3 series, green or medially rosy purple, sometimes purple-black spotted or tipped, subequal to unequal, margins glabrous or ciliate, faces usually puberulent to villous, mostly stipitate-glandular, sometimes glabrous;

outer erect or spreading, adaxially usually villous to lanate, sometimes glabrous;

inner erect, ± elongating after flowering.

in 2–4 series, medially rosy purple, sometimes purple-black apically, rarely all green or purple-black spotted, faces pubescent to villous, ± stipitate-glandular;

outer mostly spreading, adaxially ± villous and eglandular;

inner erect, elongating after flowering.

7–16 mm, bodies mostly fusiform to obconic, sometimes tumid, 2–5(–10) mm, beaks 5–11 mm, lengths 1–4 times bodies, ribs 0 or alate, straight to strongly undulate, uniform or diminishing proximally;

pappus bristles in 2–3 series, 4–9 mm.

(11–)14–20 mm, bodies ± fusiform, (6–)8–10 mm, beaks 5–10 mm, mostly equaling bodies;

ribs broadly ridged, straight;

pappus bristles in 2–3 series, 10–14 mm.