Flora of North America species comparison

prostrate or decumbent, 0–7 cm underground, hirsute.

erect or ascending, strigulose.

(1.5–)3–10(–12) cm;

stipules rarely connate at proximal nodes, 2–8.5 mm, mostly thinly herbaceous, sometimes papery at proximal nodes;

leaflets (3–)7–15, blades thin, obovate, broadly oblanceolate, or suborbiculate, (2–)5–22 mm, larger ones pinnately veined, apex cuneate to emarginate, surfaces villous-pilose abaxially, glabrous adaxially.

4–15 cm;

stipules connate-sheathing at proximal nodes, connate or distinct at distal nodes, 3–8(–12) mm, scarious;

leaflets (9 or)11–31, blades lanceolate-elliptic to linear-lanceolate, 3–35 mm, apex acute to acuminate, surfaces glabrous or glabrate, sometimes ciliate.

densely (5–)8–24-flowered;

axis 1–3(–4) cm in fruit;

bracts (2–)2.5–5 mm;

bracteoles 0.

9–45(–70)-flowered;

axis (3–)5–20(–25) cm in fruit;

bracts 1.5–7.5(–9) mm;

bracteoles 0–2.

incurved-ascending, (2–)3–11 cm.

erect, 3–13 cm.

0.7–2.5 mm.

2–8 mm.

8.8–11.2 mm;

calyx 5.5–7.8(–8.2) mm, pilose, tube 2.7–3.7 mm, lobes lanceolate to lanceolate-attenuate, (2.7–)3–4.5(–5) mm;

corolla pale yellow to greenish ochroleucous, fading yellowish, keel immaculate;

banner recurved through 50–80°;

keel 7.2–9.7 mm, apex narrowly deltate, acute or subacute, often beaklike.

12–19(–21) mm;

calyx pallid or pinkish, short-cylindric, strongly gibbous, (7.3–)8.6–12(–19) mm, glabrous or sparsely strigose, tube (4.7–)5–6(–9) mm, lobes subulate or subulate-setaceous, (1.5–)3.3–6(–10) mm;

corolla usually white or ochroleucous, concolorous, rarely lightly suffused with purple or with purple veins, sometimes keel tip lilac;

banner recurved through 45°;

keel 10.8–15.2 mm.

ascending or spreading (humistrate), pale yellow green becoming stramineous then brownish, incurved or ± straight, slenderly lunate-ellipsoid or semi-ellipsoid, bluntly 3-sided compressed, (15–)17–25 × (2.8–)3.2–5.2 mm, subunilocular, thinly fleshy becoming stiffly papery, densely hirsute, hairs spreading-ascending, to 1.2–1.8 mm, lustrous white;

gynophore to 0.8 mm.

stramineous, straight or slightly curved, linear-oblong, oblong-ellipsoid, or oblong-ovoid, sharply 3-sided compressed, faces of subequal width, nearly flat, 10–30 × 3–8 mm, papery, glabrous or sparsely strigose;

stipe (3.5–)4–6(–7) mm.

12–18.

12–22.