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.

mostly decumbent to prostrate;

petioles rarely purplish, margins not ciliate;

blades oblanceolate to spatulate, 2–10(–14) cm, margins usually dentate to lobed or laciniately pinnatifid, rarely entire, lobes 2–3 pairs, linear to oblanceolate, proximal lobes often retrorse, distal often antrorse, lobules often present, faces mostly puberulent to villous, sometimes glabrous and glaucous.

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

not elongating after flowering, 2–25 cm in fruit, basally lanate, apically stipitate-glandular.

cylindric to hemispheric, 1–2 cm in fruit.

obconic to campanulate, 1–2 cm in fruit.

epaleate.

epaleate, rarely paleate (outer florets only).

5–100(–300);

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

anthers 1–4 mm.

10–40;

corollas yellow, tubes 4–10 mm, ligules 5–11 × 2–4 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 2–4(–6) series, usually rosy purple, rarely green, sometimes spotted, often with a purple-black midstripes, unequal, faces ± hairy, stipitate-glandular;

outer usually erect, sometimes spreading apically, adaxially glabrous;

inner erect, not 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.

6–10 mm;

bodies fusiform, 6–9 mm, beaks 1–3 mm, lengths to 1/2 times bodies;

ribs ridged to flattened, straight;

pappus bristles in 2 series, 8–11 mm.

= 18, 36.