Flora of North America species comparison

petioles 5–45 mm;

blades usually 3-foliolate, leaflets usually simple, sometimes ± pinnately lobed, ultimate blades ± lanceolate, 4–9(–12+) cm × (9–)12–35+ mm.

mostly cauline on proximal 2/3–7/8 of plant heights;

petioles 0 or 10–35+ mm;

blades usually 1(–2)-irregularly pinnately or ± pedately lobed with (3–)5–9+ lobes, rarely simple, simple blades or terminal lobes narrowly lanceolate to linear or filiform, 15–45(–90+) × (0.5–)2–8(–12+) mm.

2–5+ cm.

8–15(–25+) cm.

12–22+ mm.

yellow, 12–25+ mm.

40–80+;

corollas red-brown to purplish, 5–6 mm.

3.3–4.8 mm, apices yellow.

8, ± oblong to lance-oblong, 6–8 mm.

lance-ovate, 7–9(–12) mm.

of 5–6 oblong bractlets 1.5–5 mm.

of lanceolate to linear bractlets 3.5–9+ mm.

obovate to oblong, 4–5(–6) mm.

2–3+ mm, wings spreading, ± chartaceous, entire or irregularly toothed to pectinate.

(± mid stem) 3–7(–10+) cm.

nodes proximal to first peduncle usually 6–10+, distalmost 1–3 internodes 4–7+ cm.

= 26.

= 26 (+ 0–2B).