Flora of North America species comparison

basal simple or 1-pinnate, 6–20 cm, lobes 5–15+ × 1–9 mm;

cauline 0 or 3–6.

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

cauline 2–16.

1–10 cm.

1–6 cm.

0.

0.

20–40;

corollas yellow, 3–4.5 mm, tubes 2–2.5 mm, throats campanulate, 1–1.5 mm, lengths 3–4 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.

yellowish to whitish or red-tinged, 6–9 × 2–3 mm.

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

1–8(–20+) per stem.

20–60 per stem.

4–6 mm, glabrous or sparsely hirtellous;

pappi of 12–20 scales 0.1–0.4 mm.

3.5–5 mm, hirtellous or villous;

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

= 34.