Flora of North America species comparison

proximal and mid blades serrate to undulate-serrate to occasionally deeply toothed or laciniate, glabrate;

distal blades glabrous or sparsely to moderately hairy.

proximal and mid blades serrate to undulate-serrate, glabrous or sparsely hairy;

distal blades glabrous or sparsely hairy.

1.5–8 cm, usually projecting terminal heads well beyond foliage.

1–3.5 cm, projecting terminal heads barely beyond foliage.

8–12 × 8–12 mm.

4–8 × 4–8 mm.

9–13;

corollas usually yellow throughout, sometimes reddish proximally and yellow distally, 2.7–9.1 × 1.5–6.7 mm.

7–13;

corollas yellow, 2.6–4.8 × 1.6–3.9 mm.

200–400+;

corollas 1.7–2.4 mm, lobes 5.

120–300+;

corollas 1.2–1.6 mm, lobes (4–)5.

20–100+ per plant.

20–150(–300+) per plant.

0.4–0.7 mm.

(0.2–)0.3–0.4(–0.5) mm.

= 26.

= 26.