Flora of North America species comparison

prostrate, silvery-pilose.

incurved-ascending, decumbent, or prostrate, usually sparsely to densely strigulose or strigose-pilosulous, rarely silky-villosulous.

1–4 cm;

stipules 2–8 mm, hyaline, densely pilose abaxially;

leaflets usually 3, rarely 5, blades narrowly to broadly oblanceolate or obovate-cuneate, 3–13 mm, apex subacute, surfaces silvery-pilose.

1–5.5 cm;

stipules connate-sheathing and papery at proximal nodes, mostly connate and herbaceous at distal nodes, turning black in drying, 2–5 mm;

leaflets (5 or)7–13, blades elliptic, linear-elliptic, lanceolate, oblanceolate, or narrowly obovate, 2–12 mm, apex usually acute, sometimes obtuse or retuse and apiculate, surfaces strigose abaxially, silky-strigulose, villosulous, glabrescent, or glabrous adaxially.

(2 or)3–5-flowered;

axis to 1 cm in fruit;

bracts 1–2.5 mm.

3–7(–11)-flowered, flowers spreading;

axis 0.5–3 cm in fruit;

bracts 0.5–2.7 mm;

bracteoles 0–1.

0.5–2.5 cm.

0.2–4 cm.

1–3.5 mm.

1.5–3.5(–4.2) mm.

5–6.2(–8) mm;

calyx campanulate, 2.4–4.2 mm, densely pilose, tube 2–3 mm, lobes triangular-subulate, 1–1.2 mm;

corolla pink-purple or white, often drying yellowish;

banner recurved through 90°;

keel 4–4.5 mm, apex bluntly deltate.

(4.3–)5.2–9.3 mm;

calyx turbinate-campanulate to campanulate, 2.4–4.5 mm, strigose, tube 1.4–2.2 mm, lobes setaceous, (0.8–)1.3–2.5 mm;

corolla pink-purple, lilac, or whitish, sometimes lilac-tipped or -tinged, banner sometimes purple-veined, keel maculate;

banner abruptly recurved through 90°;

keel (2.9–)3.4–5.6 mm.

ascending or recurved, ovoid-ellipsoid, slightly compressed, 3–4.5 × 2 mm, papery, densely silky-strigose or silky-pilose.

deflexed or declined, stramineous, straight, ellipsoid, obovoid-ellipsoid, oblong-ellipsoid, or linear, laterally flattened, 3.5–12 × 1.8–3.5 mm, bicarinate, papery, strigose;

stipe 0–0.3 mm.

6–10.

(4 or)5–8(–11).