Flora of North America species comparison

erect and ascending, in clumps, sparsely strigulose.

spreading to ascending and diffuse, with well-developed internodes, sparsely strigulose.

7–20 cm;

stipules 1–4 mm, membranous becoming papery;

leaflets (17 or)19–25(or 27), blades ovate, elliptic, or obovate to obcordate, 3–12 mm, apex retuse or obtuse, surfaces sparsely strigulose abaxially, silvery-canescent adaxially.

(2.5–)4.5–10.5 cm;

stipules connate-sheathing at proximal nodes, distinct at distal nodes, 1.5–6 mm, papery-scarious;

leaflets (7–)15–25, blades linear-oblong, -oblanceolate, or filiform, 1–11 mm, apex obtuse or subacute, surfaces strigulose abaxially, glabrous adaxially;

terminal leaflet sometimes decurrent distally, not jointed to rachis.

(5–)7–12(–15)-flowered, flowers spreading-ascending;

axis (4–)6–18 cm in fruit;

bracts 1–2.4 mm;

bracteoles 0–2.

(5–)8–20-flowered;

axis (2–)3–10 cm in fruit;

bracts 0.7–2 mm;

bracteoles 0–2.

arising from near or proximal to middle of stem, erect and ascending, 9–20 cm, together with racemes as long as or longer than stems.

(0.5–)1.5–7 cm.

1–4.8 mm.

0.7–2 mm.

12.6–15.7 mm;

calyx 6.1–7.6 mm, strigulose-villosulous, tube 4.1–5 mm, lobes subulate, 2–2.8 mm;

corolla ochroleucous;

banner recurved through 45°;

keel 9.7–11 mm, apex bluntly deltate.

6–8.2 mm;

calyx 2.5–5 mm, strigulose, tube (1.5–)1.8–3 mm, lobes subulate, 0.8–2 mm;

corolla usually white or whitish, rarely yellow, drying yellowish, banner sometimes brownish-striate;

banner abruptly recurved through (50–)85–100°;

keel 4.7–5.7 mm.

ascending, stramineous, slightly incurved, linear-lanceoloid, 3-sided compressed, 24–42 × 3.5–5.5 mm, thin becoming papery, glabrous;

gynophore stout, (0.8–)1.2–2.5 mm.

pendulous, stramineous, slightly incurved, lunately semi-ellipsoid, 3-sided compressed, 9–16 × 3–4.5 mm, papery, finely strigulose;

septum 1.3–2 mm wide;

stipe 3–5 mm.

20–24.

11–16.