Flora of North America species comparison

on proximal 1/2–2/3 of each stem;

blades of undivided cauline leaves obovate to spatulate, margins denticulate, midribs usually prickly-setose.

on proximal 1/2–3/4+ of each stem;

blades of undivided cauline leaves ± linear to filiform, margins entire or denticulate, midribs usually prickly-setose.

12–15 mm.

6–9(–13+) mm.

10–15;

corollas yellow, usually deliquescent.

6–12(–20+);

corollas yellow (sometimes abaxially bluish), usually deliquescent.

usually reflexed in fruit.

usually erect in fruit.

in paniculiform arrays.

in racemiform to spiciform arrays.

bodies purplish to blackish, ± flattened, ± elliptic, 3.5–4 mm, beaks ± filiform, 2.5–3.5 mm, faces 5–7-nerved;

pappi white, 5–6 mm.

bodies pale brown, ± flattened, elliptic to oblanceolate, 2.5–3.5 mm, beaks ± filiform, (2–)5–6 mm, faces 5–7-nerved;

pappi white, 5–6 mm.

= 18.

= 18.