Flora of North America species comparison

on proximal 1/2–3/4 of each stem;

blades of undivided cauline leaves ovate to orbiculate, margins entire or denticulate, seldom prickly, midribs rarely prickly-setose.

on proximal 2/3–3/4 of each stem;

blades of undivided cauline leaves ovate to lanceolate, margins entire or denticulate, midribs sometimes sparsely piloso-setose.

8–13+ mm.

7–12+ mm.

7–15(–30+);

corollas yellow (sometimes streaked with violet), usually deliquescent.

(15–)20–30(–50+);

corollas bluish or whitish, sometimes yellowish, seldom deliquescent.

usually erect in fruit.

usually reflexed in fruit.

usually in corymbiform, sometimes in paniculiform, arrays.

in paniculiform arrays.

bodies pale grayish to whitish or tan, ± flattened, obovate, 3–4 mm, beaks ± filiform, 3–5 mm, faces 5–9-nerved;

pappi white, 3.5–4+ mm.

bodies brown (often mottled), ± compressed-ellipsoid, 4–5+ mm, beaks ± stout, 0.1–0.5+ mm, faces (4–)5–6-nerved;

pappi ± fuscous, 4–6+ mm.

= 18.

= 34.