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 1/3–1/2 of each stem;

blades of undivided cauline leaves spatulate to lance-linear, margins entire or denticulate, midribs sometimes setose.

8–13+ mm.

12–20+ mm.

7–15(–30+);

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

15–20+;

corollas bluish to purplish, usually 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), ± flattened, elliptic, 5–6 mm, beaks ± filiform, 2–4 mm, faces 1(–3)-nerved;

pappi white, 5–9 mm.

= 18.

= 34.