Flora of North America species comparison

0 or 1 (erect, 0–5 cm).

usually 0, rarely weakly developed.

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 often purplish, margins ciliate to tomentose;

blades usually linear to oblanceolate, rarely spatulate, 10–40(–50) cm, margins usually dentate to lobed, or laciniately pinnatifid, rarely subentire, lobes 3–5 pairs, opposite to irregular, linear to lanceolate, usually antrorse, sometimes spreading;

lobules often present, faces ± villous to canescent.

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–)25–60(–96) cm in fruit, ± glabrate, or apically villous to tomentose, eglandular, sometimes bracteate.

cylindric to hemispheric, 1–2 cm in fruit.

campanulate to hemispheric, 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.

40–500;

corollas yellow, tubes 4–7(–10) mm, ligules 3–7 × ca. 1 mm;

anthers 1–3 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 4–5 series, green or medially rosy purple and/or spotted, subequal to unequal, margins occasionally dentate, ciliate or lanate, sometimes glabrous, faces glabrous or hairy, eglandular;

outer subequal to or surpassing inner at flowering, spreading, adaxially tomentose;

inner erect, greatly 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.

9–28 mm, bodies fusiform, 3–7 mm, beaks 9–21 mm, lengths mostly 3–4 times bodies;

ribs ridged to subalate, rarely nerviform, straight, ± glabrous;

pappus bristles in 2–3 series, 7–15 mm.

= 18.