Flora of North America species comparison

0.

0.

erect to decumbent;

petioles purplish, petiole margins ciliate to hairy;

blades 7–38 cm, linear-lanceolate to oblanceolate, margins entire or laciniately pinnatifid, lobes 2–4 pairs, linear to lanceolate, spreading to antrorse, lobules usually inconspicuous to subequaling lobes, rarely lacking, faces glabrous and ± glaucous or sparsely villous.

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, 8–40(–80) cm, glabrate, or apically villous to lanate, eglandular.

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

cylindric to obconic or campanulate, 2.5–3 cm at maturity.

obconic to campanulate, 1–2 cm in fruit.

epaleate.

epaleate, rarely paleate (outer florets only).

15–100;

corollas usually orange, sometimes yellow, pink, red, purple, or white, tubes (4–)7–9 mm, ligules 4–12 × 1–3 mm;

anthers 2–5 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, often with purple-black spots, blotches, and/or midstripes, or nearly all black, subequal to unequal, margins ciliate, faces glabrous or villous, eglandular;

outer mostly spreading, adaxially glabrous or villous;

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.

± dimorphic, 8–18 mm, bodies cylindric to fusiform or obconic, 6–9(–11) mm, abruptly or gradually tapered to slender beaks (2–)5–10 mm, lengths mostly equaling bodies;

ribs strongly ridged, straight, glabrous or scabrous;

pappi in 2–3 series, 9–15 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.

= 18, 36.