Flora of North America species comparison

erect or ascending, sparsely strigulose.

prostrate-ascending, hirsute.

(3–)4–12 cm;

stipules connate and scarious-papery at proximal nodes, distinct and herbaceous at distal nodes, 1.5–5 mm;

leaflets (17–)21–29, blades flat or loosely folded, oblong-oblanceolate or elliptic, 3–13 mm, apex obtuse to subacute, surfaces sparsely strigulose abaxially, glabrate or glabrous adaxially.

5–15 cm;

stipules 3–6 mm, herbaceous;

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

(5–)10–30-flowered;

axis (1.5–)3–19 cm in fruit;

bracts 1–2 mm;

bracteoles 2.

5–15-flowered;

axis scarcely elongating;

bracts 1.5–3 mm;

bracteoles 0.

(2–)4–11 cm.

1.5–4 cm.

0.6–1.5 mm.

0.6–1 mm.

5.8–8 mm;

calyx marcescent, 3.4–4.3 mm, strigulose, hairs black and/or white, tube 2.1–2.7 mm, lobes subulate, 1–2 mm;

corolla whitish or, sometimes, greenish ochroleucous, immaculate;

banner abruptly incurved through 90°;

keel 4.2–5.6 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 or decurved, linear-oblong or linear-oblanceolate, 3-sided compressed, 15–30 × (2.5–)3–4 mm, bilocular, papery, glabrous;

valves inflexed as complete septum 1.4–1.9 mm wide;

stipe 1.5–2.5 mm.

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.

12–16.

= 16.