Flora of North America species comparison

proximal blades usually 1(–3)-pinnate, terminal lobes lance-ovate to oblanceolate, 10–60 × 5–25 mm;

cauline blades usually 1–2(–3)-pinnate, rarely simple, simple blades or terminal lobes lance-linear to linear or filiform, 10–45 × 0.5–2(–5+) mm.

lobes linear, 5–25 × 0.5–1(–2) mm.

1–5(–15+) cm.

2–20(–35+) cm.

(3–)8+;

laminae (5–)12–20+ mm.

usually yellow with red-brown blotch, sometimes red-brown in proximal 1/3–9/10 and distally yellow, rarely yellow throughout, 12–18+ mm.

2.5–3+ mm.

(5–)50–100+;

corollas 2–4.5 mm.

± lance-oblong to lance-ovate, 4–7(–9) mm.

(3–)8+, ± ovate to obovate, 6–10(–12+) mm.

of deltate-lanceolate bractlets 1–3+ mm.

of (1–)5–8 linear bractlets (1–)3–8+ mm.

1.5–3(–4+) mm, wings 0 or 0.1–0.7+ mm wide;

pappi 0, or of 1–2 cusps or subulate scales 0.1–1+ mm.

oblanceolate to ± oblong, 5–6(–7) mm;

pappi 2–3 mm.

± oblong, 5–6 mm.

basally adnate to and falling with disc cypselae.

= 24 (+ 0–2 Bs).

= 24.