Flora of North America species comparison

branched, slender, sometimes decumbent and ascending, (10–)15–55(–75) cm.

usually branched or with spur branches 1 or several nodes preceding first peduncle, sometimes unbranched, robust, slender and almost solid, or stout and hollow, (35–)40–120(–160) cm.

5–15(–23) cm;

leaflets (7–)15–23(or 25), blades (5–)7–30(–40) mm, apex usually apiculate.

(3.5–)5–25(–35) cm;

leaflets (9–)15–35, blades 6–45(–52) mm, apex obtuse, apiculate, or truncate-emarginate.

(2.5–)4–9.5(–15) × 2.5–3.5 cm, flowers (11.7–)12.5–17(–17.5) mm.

rarely loose, 3–16 × (2–)2.5–3 cm, flowers 11.3–16.3 mm.

stout, (4–)5–15(–20) cm, longer or shorter than leaves.

slender or stout, (2.5–)4–12(–13) cm.

1.2–3.5(–4) mm.

1.2–2.5 mm.

calyx (6.8–)7.1–10.5(–11) mm, lobes 1–2.5(–3) mm, adaxial pair nearly always broadly triangular or deltate (and mostly shorter) than the rest;

corolla ochroleucous, stramineous, or greenish white.

calyx (4.6–)5.5–9.6(–10.3) mm, lobes 1.5–5.5 mm;

corolla greenish white or dull stramineous.

grooved dorsally, (9–)10–15 × 2.9–4(–4.5) mm, beak 1.5–3 mm, mostly at least moderately strigulose;

septum 1.5–3 mm wide.

terete or subterete, carinate by ventral suture, not grooved dorsally, (9–)10–15 × 4–5.2 mm, beak 2–6 mm, usually glabrous, rarely puberulent or strigulose.

(17 or)18–25(–28).

(18–)20–26(or 27).

(3–)4–14 mm, proximalmost ruptured in some very robust specimens.

3–18 mm, proximalmost usually ruptured becoming irregularly circumscissile.

= 16.

= 16.