Flora of North America species comparison

erect or ascending, sparsely strigulose.

decumbent, strigulose.

(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.

1.5–4 cm;

stipules 1–1.5 mm, herbaceous becoming papery;

leaflets 11 or 13, blades obovate, 2–4.5 mm, apex obtuse, surfaces strigulose abaxially, glabrous adaxially.

(5–)10–30-flowered;

axis (1.5–)3–19 cm in fruit;

bracts 1–2 mm;

bracteoles 2.

8–18-flowered, flowers ascending;

axis 1–2.5 cm in fruit;

bracts 1.3–2.5 mm;

bracteoles 0.

(2–)4–11 cm.

prostrate and radiating in fruit, 5–7 cm.

0.6–1.5 mm.

1.5 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.

7.5–8 mm;

calyx 6 mm, strigulose-villosulous, tube 3 mm, lobes subulate, 2.8 mm;

corolla pink-purple or bluish lavender;

banner recurved through 45°;

keel 5.8–6.2 mm, apex bluntly deltate.

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.

disjointing from receptacle when mature, ascending, stramineous, slightly incurved, narrowly lanceoloid, 3-sided compressed, 7–9 × 2–2.5 mm, thin becoming stiffly papery, loosely strigulose.

12–16.

6.