Flora of North America species comparison

blades simple or 1(–2)-pinnately lobed, terminal lobes filiform, 0.5–1(–1.5) mm wide.

petioles 0–1 mm;

blades usually 3-foliolate, simple blades or leaflets entire or each ± pedately lobed with 2–5+, ± oblong to linear lobes 15–30+ × 1–1.5(–2.5+) mm.

5–15(–30+) cm.

2–5(–8+) cm.

(5–)8(–12+);

laminae 7–10(–15+) mm.

10–20+ mm.

20–60(–100+);

corollas 2–3.6 mm.

30–45+;

corollas yellow (sometimes drying blackish) or purple, 3–4 mm.

5–8, obovate to oblanceolate, 4–6(–7+) mm.

8, lance-ovate to oblong, 4–5 mm.

of (3–)5–8 linear bractlets 3–7+ mm, not ciliolate near bases.

of 8 oblong to linear bractlets 1.5–3+ mm.

± oblong, (2.5–)3–4+ mm, marked adaxially with red dots or dashes, wings corky-thickened, faces ± tuberculate and/or hirtellous.

obovate to oblong, 4–5 mm.

(± mid stem) 8–12(–16) mm.

= 24.

= 26.