Flora of North America species comparison

0.

erect to decumbent;

petioles rarely purplish, petiole margins glabrous or pubescent, not usually ciliate;

blades lanceolate to oblanceolate, 2–46 cm, margins usually entire, sometimes dentate, rarely lobed or lacerate, lobes 2–3 pairs or irregularly arranged, lanceolate, spreading, lobules 0, faces glabrous and glaucous or sparsely villous to tomentose.

not notably elongating after flowering, 5–60(–90) cm in fruit, glabrous or glabrate, or apically puberulent to lanate, sometimes stipitate-glandular.

obconic to hemispheric, 1–3 cm in fruit.

epaleate or paleate.

15–150;

corollas yellow, tubes 4–18 mm, ligules 6–24 × 2–5 mm;

anthers 3–7 mm.

in 2–3 series, green or medially rosy purple, often with purple-black spots, midstripe, and/or tips, subequal to unequal, margins glabrous or ± hairy, not usually ciliate, faces glabrous or tomentose, sometimes stipitate-glandular or eglandular;

outer erect or spreading, apices adaxially glabrous or hirsuto-villous;

inner erect, not notably elongating in fruit.

7–15 mm, bodies fusiform to narrowly conic, 5–9 mm, tapered to stout beaks 1–4 mm, lengths mostly less than 1/2 times bodies;

ribs flattened to ridged, glabrous, or distally scabrous;

pappi in 2–3 series, 8–18 mm.

= 18, 36