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 oblong, ovate, or elliptic, margins entire or denticulate, midribs sometimes sparsely pilose.

8–13+ mm.

(8–)10–12+ mm.

7–15(–30+);

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

10–15(–25+);

corollas bluish or whitish, seldom deliquescent.

usually erect in fruit.

usually reflexed in fruit.

usually in corymbiform, sometimes in paniculiform, arrays.

in (± pyramidal) 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-lanceoloid to -fusiform, 4–5 mm, beaks ± stout, 0.1–0.5(–1) mm, faces 5–6-nerved;

pappi white, 4–5 mm.

= 18.

= 34.