Flora of North America species comparison

erect or ascending, strigulose.

prostrate-ascending, hirsute.

mostly in sub-basal cluster, (6–)10–30 cm;

stipules connate-sheathing at proximal nodes, mostly connate at distal nodes, 3–10(–11) mm, scarious throughout;

leaflets (9–)13–25(–31), blades linear-oblong, linear-elliptic, lanceolate, or subfiliform, 3–23 mm, apex obtuse, acute, or retuse, surfaces sparsely strigulose abaxially, usually glabrous adaxially;

terminal leaflet sometimes continuous with rachis.

5–15 cm;

stipules 3–6 mm, herbaceous;

leaflet blades oblong-obovate or -ovate, 4–17 mm, apex retuse, surfaces hirsute.

7–20-flowered, flowers ascending to spreading;

axis (3–)4–13(–15) cm in fruit;

bracts 2–4.5 mm;

bracteoles 2.

5–15-flowered;

axis scarcely elongating;

bracts 1.5–3 mm;

bracteoles 0.

erect, sometimes divergent in fruit, 5–33 cm, together with racemes longer than stems.

1.5–4 cm.

1–4.5 mm.

0.6–1 mm.

15–25.5 mm;

calyx campanulate, cylindric, or subcylindric, 7–12 mm, strigulose-pilosulous, tube 4.9–9.2 mm, lobes subulate, 1.3–3(–4) mm;

corolla whitish with keel tip purple, sometimes banner and wings also purple-tipped, sometimes purple throughout;

banner recurved through 30–45°, oblanceolate or broadly rhombic-oblanceolate, 16–25.5 mm, apex emarginate;

keel 11.6–17.5 mm.

5–6.5 mm;

calyx 5–6.5 mm, densely white or white and black hairy, lobes filiform, 2–5 mm (longer than tube);

corolla keel 5–6.5 mm.

stramineous, straight or slightly incurved, oblong-ellipsoid to narrowly oblong-ovoid, obcompressed, 12–25 × 4.3–8 mm, sub-bilocular, fleshy becoming leathery or subligneous, glabrous or strigulose;

septum to 1.4 mm wide;

sessile.

blackish brown at maturity, coiled through 0.75–1.25 spiral into a ring, 6–8 mm diam., 2–3 mm wide, papery, grooved dorsally, sparsely hirsutulous.

15–30.

= 16.