Flora of North America species comparison

prostrate, when developed, 0–5 cm, mostly obscured by stipules, strigulose.

decumbent to erect, sterile branches forming tuft of sub-basal leaves, strigose, strigulose, or villous.

1.5–5 cm;

stipules connate-sheathing or distinct, 2–7 mm, membranous;

leaflets 7–17, blades elliptic to oblanceolate, 3–9 mm, apex acute to obtuse, surfaces strigose.

1.5–20 cm;

stipules connate-sheathing (bidentate) at proximal nodes, shortly connate or distinct at distal nodes, 1.5–9 mm, papery-membranous throughout or, sometimes, herbaceous at distal nodes;

leaflets 3–21, blades linear, oblong, elliptic, linear-elliptic, linear-oblanceolate, lanceolate, oblong-elliptic, elliptic-lanceolate, or, rarely, filiform-subulate (distally), 2–30(–42) × 0.5–7 mm, apex acute, obtuse, acuminate, apiculate, or, rarely, retuse, surfaces strigose, glabrescent, or glabrous abaxially, glabrous, glabrescent, or sparsely hairy adaxially;

terminal leaflet sometimes decurrent distally, not jointed to rachis.

2–8-flowered, flowers ascending;

axis 0.5–2.5 cm in fruit;

bracts 2–4 mm;

bracteoles 0–2.

3–19(–24)-flowered, flowers spreading-declined;

axis 1–14 cm in fruit;

bracts 0.6–4 mm;

bracteoles usually 0.

ascending, 0.5–5.2 cm.

usually incurved-ascending, 2–14 cm.

0.5–1.5 mm.

0.8–3 mm.

12.2–15 mm;

calyx short-cylindric, 6.1–7.7(–8.4) mm, pilose, hairs black and white, tube 5.2–6.5 mm, lobes subulate, 0.9–1.7 mm;

corolla pink-purple or bicolored;

keel 9.8–12.5 mm.

5.3–10.6 mm;

calyx (2.3–)2.4–6 mm, strigose, tube 1.7–4.2 mm, lobes subulate, 0.5–2.6 mm;

corolla lilac, pink-purple, ochroleucous, or whitish, often suffused, lined, or veined with purple;

banner recurved through 40–90°;

keel 5.9–10.7(–11.4) mm, apex beaklike.

declined, green, usually red-mottled or -spotted, becoming stramineous, lunately incurved, ovoid-ellipsoid, dorsiventrally compressed, 12–19 × 5–6 mm, subunilocular, thin becoming papery, long silky-pilose;

sessile, gynophore 0–0.5+ mm.

declined-pendulous; green, sometimes with purple speckles, becoming brown or stramineous, straight or nearly so, linear, linear-oblong, linear-ellipsoid, or oblanceoloid, laterally compressed, bicarinate by sutures, 11–25 × (1.2–)2–4 mm, papery, usually strigulose, villosulous, or glabrous, rarely with few hairs;

stipe 0–1 mm.

20.

6–19.