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;

petioles rarely purplish, petiole margins glabrous or tomentose;

blades narrowly to broadly oblanceolate, (7–)10–30 cm, margins usually lobed to pinnatifid, rarely dentate, lobes 5–7(–9) pairs, lanceolate to oblanceolate, spreading to antrorse, lobules sometimes present, faces sparsely to densely hairy.

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

not notably elongating after flowering, 10–45 cm in fruit, glabrate, or basally and apically pubescent to villous, mostly stipitate-glandular.

cylindric to hemispheric, 1–2 cm in fruit.

obconic to campanulate, 1.5–2.5 cm in fruit.

epaleate.

epaleate.

5–100(–300);

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

anthers 1–4 mm.

50–250;

corollas yellow, tubes 3–6 mm, ligules 6–16 × 2–3 mm;

anthers 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 2–3 series, green or medially rosy purple, sometimes purple-black speckled, margins ciliate, faces ± villous, stipitate-glandular;

outer erect to spreading, adaxially ± tomentose;

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.

9–14 mm;

bodies fusiform to narrowly conic, 3–5 mm, beaks 6–10 mm, lengths 1–3 times bodies, ribs flattened, ridged, or subalate, straight or slightly undulate;

pappus bristles in 3–4 series, (4–)6–10 mm.

= 18.