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.

petioles 0–1 mm (or 5–25+ mm, winged, and scarcely distinct from blades);

blades not 3-foliolate, most with 3(–5+), ± oblong to linear lobes (5–)15–40+ × 2–3(–7+) mm (sometimes some leaves not lobed).

1–5(–15+) cm.

1–4+ cm.

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

15–25+ mm.

2.5–3+ mm.

60–80+;

corollas yellow (sometimes drying blackish), 5–6.5 mm.

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

8, ± oblong to nearly orbiculate, 6–10 mm.

of deltate-lanceolate bractlets 1–3+ mm.

of 9–12+ oblong to lanceolate bractlets 3–9+ 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.

oblong, 5–6 mm.

(± mid stem) 25–50 mm.

= 24 (+ 0–2 Bs).

= 26.