Flora of North America species comparison

prostrate, silvery-pilose.

decumbent to ascending or erect, diffuse, 3–10(–17) cm underground, appressed-hairy or 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.

(2–)3–11 cm;

stipules connate-sheathing and papery at proximal nodes, ± distinct or connate to 1/2 their length and herbaceous becoming papery at distal nodes, 2–6 mm;

leaflets 7–27, blades broadly to narrowly elliptic, oblong-lanceolate, obovate-cuneate, or linear-oblong, 3–16 mm, apex truncate-emarginate or obtuse, surfaces strigulose abaxially, sparsely hairy adaxially.

(2 or)3–5-flowered;

axis to 1 cm in fruit;

bracts 1–2.5 mm.

5–19(–27)-flowered, flowers ascending;

axis (0.5–)1.5–6.5 cm in fruit;

bracts 1.5–6 mm;

bracteoles (0 or) 2.

0.5–2.5 cm.

ascending, usually stout and ± straight, 2–8(–11.5) cm.

1–3.5 mm.

1–2.9 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.

13.4–21 mm;

calyx campanulate or cylindric-campanulate, 6–10.6 mm, villosulous, tube 4.9–8 mm, lobes subulate to triangular, 1.1–2.8 mm;

corolla bright pink-purple or pale and lilac-tinged;

banner recurved through 45°;

keel 10.4–14 mm.

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

spreading to declined, green, sometimes red-mottled, becoming brown or stramineous, straight or nearly so, oblong or ovoid-ellipsoid, turgid or somewhat inflated, not bladdery, 15–24 × (4.5–)5–9.5 mm, leathery, sparsely strigulose to villosulous;

sessile or subsessile.

6–10.

25–36.