Flora of North America species comparison

sprawling to ascending, (8–)24–40 cm.

ascending, decumbent, or sprawling, silky-strigose, villous, or villous-tomentose.

3–9 cm;

sessile or petiolate;

leaflets (5–)9–15, blades elliptic to lanceolate, lanceolate-oblong, linear-lanceolate, or linear, 6–33 mm, apex acute to apiculate, surfaces glabrous, strigulose, pilosulous, or villous.

(1–)2–7(–10) cm;

stipules clasping with margins touching but distinct or shortly connate at proximal nodes, distinct at distal nodes, (1–)2–7(–11) mm, often veined, semileathery;

leaflet blades linear, lanceolate, oblong, elliptic, or elliptic-oblanceolate, 3–33(–35) mm, apex acute, subacute, or obtuse, surfaces glabrous, glabrate, or pubescent.

densely to loosely 8–29(–32)-flowered;

axis 3–14 cm in fruit.

densely or loosely 6–40-flowered;

axis 1.5–15 cm in fruit, elongating little after flowering;

bracts 1.2–5 mm;

bracteoles 0.

(4–)4.5–10 cm.

usually erect, rarely humistrate in fruit, (2–)2.5–15 cm, equal to or longer than subtending leaf, together with racemes usually shorter than stems.

0.8–2.2 mm 1.2–3.5 mm in fruit.

(10.5–)11.5–13.8(–14.5) mm;

calyx (4.7–)4.8–6.5 mm, tube 2.8–5 mm, lobes (1–)1.4–2.4 mm.

7–13.8(–14.5) mm;

calyx 3.7–6.4 mm, villous or strigulose, tube 2.4–5 mm, lobes subulate, (1–)1.1–4 mm;

corolla white to purplish or creamy white;

wing apex bidentate;

keel (6.1–)6.7–9.6 mm, shorter than wings.

whitish to purplish.

obliquely ellipsoid to narrowly oblong, (10–)15–30 × (3–)6–8.5 mm, glabrous;

stipe (3–)5–7 mm.

green, often with red or purple, becoming stramineous, ± straight or slightly curved abaxially, convex adaxially, not sulcate, obliquely ellipsoid, semi-ellipsoid, or narrowly oblong, laterally compressed, 10–30 × 3–9(–11) mm, papery, translucent, usually glabrous, sometimes strigose, hyaline septum 0–0.6 mm wide;

stipe 2.5–8[–10] mm.

8–16.