Flora of North America species comparison

stipules connate-sheathing at proximal nodes, distinct at distal nodes;

leaflets 7–11, blades to 2–5 mm, surfaces strigulose adaxially (often densely so);

terminal leaflet not jointed to slightly dilated rachis.

stipules connate-sheathing at proximal nodes, distinct at distal nodes;

leaflets (5 or)7–11(or 13), blades to 5–18(–27) mm, surfaces strigulose adaxially (often densely so);

terminal leaflet continuous with rachis.

calyx 3–3.6 × 2.2–2.5 mm;

corolla ochroleucous, fading yellowish;

banner 9–10 mm.

calyx 4.4–5.8 × 3–4 mm;

corolla white or creamy white, concolorous;

banner 14–15.5 mm.

purple-mottled, obliquely ovoid, bladdery-inflated, 20–25 mm, (1–)1.2–2.2 mm wide when pressed;

stipe 3 mm.

not mottled, turning stramineous, much inflated, usually broadly obovoid or obovoid-ellipsoid, rarely semi-ellipsoid, 20–48 mm, (1–)1.2–2.2 mm wide when pressed;

stipe 3–5(–6) mm.

17–20.

10–20.

= 22.