Flora of North America species comparison

prostrate, silvery-pilose.

very slender, prostrate-spreading, strigulose.

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–)2–11.5(–15) cm;

stipules connate-sheathing and papery at proximal nodes, connate or distinct and herbaceous at distal nodes, 1.5–5 mm;

leaflet blades linear-filiform to narrowly oblong, involute or conduplicate, 5–27 mm, apex acute to obtuse, surfaces strigose abaxially, glabrous adaxially.

(2 or)3–5-flowered;

axis to 1 cm in fruit;

bracts 1–2.5 mm.

of subradical inflorescences 1(or 2)-flowered, others 2–5(–7)-flowered;

axis filiform, 0.5–6(–8) cm in fruit;

bracts 1–2 mm;

bracteoles 2.

0.5–2.5 cm.

pendulous or ascending, humistrate in fruit, 2.5–14(–17) cm (early subradical, shorter than leaves, later much surpassing leaves).

1–3.5 mm.

1.2–4 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.

4–6(–7) mm;

calyx 2.7–4 mm, black-strigose, tube 1.8–2.5 mm, lobes subulate, 0.9–2 mm;

corolla keel 3.5–4.5 mm.

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

greenish or purple-dotted becoming brownish stramineous, 10–18 × 3.5–5 mm, thin becoming papery, strigose;

septum 1.2–2 mm wide;

stipe 0–1 mm.

6–10.

= 22.