Flora of North America species comparison

basal 2-pinnate, 6–16 cm, lobes 6–20 × 1(–3) mm;

cauline 10–40.

basal 2-pinnate, 8–14 cm, lobes 5–15+ × 1–2 mm;

cauline 2–3.

1–6 cm.

3–8 cm.

8;

corollas white, laminae (6–)14–16 mm.

8;

corollas white, laminae 14–16 mm.

32–50+;

corollas yellowish, 3–3.5 mm, tubes 1.5 mm, throats campanulate, 1.5–2 mm, lengths 2–3 times lobes.

30–50+;

corollas yellowish, 3–4 mm, tubes 1.5–2 mm, throats campanulate, 1.5 mm, lengths 3 times lobes.

yellowish, 5–8 × 3–5 mm.

yellowish, 7–9 × 3–5 mm.

20–40 per stem.

6–8 per stem.

4 mm, glabrous;

pappi 0 or of scales 0.1–0.2 mm.

4–4.5 mm, ± hirtellous to villous;

pappi of 14–18 scales 0.4–0.6 mm.

= 34.

= 34.