Flora of North America species comparison

erect or ascending, sparsely strigulose.

erect, glabrous or sparsely villous.

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.

(3.5–)5–12(–16) cm;

stipules 4–15 mm, submembranous;

leaflets (13–)19–27(–37), blades ovate, lanceolate-oblong, or oblong-obovate, (3–)5–22 mm, midrib prominent, pubescent abaxially, apex truncate and apiculate, retuse, obtuse, or subacute, surfaces glabrous or sparsely villous abaxially, glabrous adaxially.

(3–)5–25-flowered;

axis 2–20 cm in fruit;

bracts 1.5–4 mm;

bracteoles 2.

(10–)15–40-flowered;

axis (1–)2–4.5 cm in fruit;

bracts 2–6 mm;

bracteoles 0–2.

erect, 3–25 cm.

erect, 5–13 cm.

0.7–4 mm.

0.6–1.8 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.

9.1–11 mm;

calyx 6.6–9 mm, sparsely villous-villosulous, tube 3.2–4.3 × 2.4–3 mm, lobes linear to lanceolate-acuminate, 3.3–4.9 mm;

corolla white, immaculate;

banner recurved through 45°;

keel 7–7.4 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.

declined, stramineous or brown, slightly incurved, obliquely lanceoloid, 3-sided compressed, grooved dorsally, 11–15 × 3–3.4 mm, papery, villosulous, hairs 1+ mm;

septum 1.5–2.2 mm wide;

stipe 0.3–0.4 mm.

8 or 9.