Flora of North America species comparison

basal 2-pinnate, 12–25 cm, lobes 5–15(–25+) × 0.5–1.5(–3+) mm;

cauline 1–3(–5).

basal simple (5–20+ mm wide) or 1-pinnate, 8–20 cm, lobes 5–20+ × 1–5(–20+) mm;

cauline 2–16.

6–15 cm.

1–6 cm.

8;

corollas white or pinkish, laminae 14–20 mm.

0.

60–150+;

corollas yellowish, 3.5–4 mm, tubes 1.5–2 mm, throats campanulate, 1.5–2 mm, lengths 2–3 times lobes.

40–60;

corollas white to purplish or yellowish to reddish, 3–5 mm, tubes 2–3 mm, throats funnelform, 1–1.5 mm, lengths 1–1.5 times lobes.

whitish or yellowish, 8–10 × 4–7 mm.

whitish (sometimes red-tinged) or yellowish, 5–12 × 2–7 mm.

3–8 per stem.

20–60 per stem.

3.5–4 mm, glabrous;

pappi 0 or of 1–12+ scales 0.01–0.1 mm.

3.5–5 mm, hirtellous or villous;

pappi of 16–18 scales 0.3–1(–1.5) or 1.5–2 mm.

= 34.