Flora of North America species comparison

erect or ascending, sparsely strigulose.

2–15 cm;

stipules 1.5–5 mm, papery-scarious at proximal nodes, subherbaceous at distal nodes;

leaflet blades linear, linear-oblanceolate, or filiform, 5–30 mm, apex acute, subacute, or, often, mucronate, surfaces silvery-canescent, more densely so adaxially;

terminal leaflet sometimes decurrent distally, not jointed to rachis.

2–8 cm;

stipules 5–10 mm, membranous becoming papery;

leaflets (1 or)3 or 5, blades obovate to rhombic or elliptic, 6–25 mm, apex obtuse, surfaces densely strigose.

(3–)5–25-flowered;

axis 2–20 cm in fruit;

bracts 1.5–4 mm;

bracteoles 2.

2–7-flowered, flowers erect-ascending;

axis 0.2–0.8 cm in fruit;

bracts 2.5–6 mm;

bracteoles 0–2.

erect, 3–25 cm.

ascending, 1–3 cm.

0.7–4 mm.

1.2–4 mm.

14.5–26 mm;

calyx 7.9–13.7 mm, strigulose, tube 6.5–10 mm, lobes lanceolate-subulate, 1.5–4.3 mm;

corolla keel 12.8–18.5 mm.

20–28 mm;

calyx cylindric, 12–17 mm, loosely strigulose, tube 10–14 mm, lobes linear-subulate, 1.8–5.5 mm;

corolla ochroleucous or greenish white, often tinged faintly purplish, keel tip purple;

banner recurved through 40°;

keel 18–22 mm.

firmly attached to receptacle, falling while still attached to pedicel, stramineous, straight or slightly incurved, obliquely ovoid or plumply oblong, 15–31 × 5–12 mm, fleshy becoming woody, glabrous;

septum (0–)1–2.5(–4) mm wide.

ascending (humistrate), red-purple to stramineous, incurved, ovoid-acuminate, inflated, 17–30(–32) × 10–23 mm, unilocular, fleshy becoming stiffly papery, hirsute, hairs long, lustrous.

28–38.