Flora of North America species comparison

erect or ascending, sparsely strigulose.

prostrate, 3–12 cm, (0–)1–8 cm underground, pilosulous.

(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.

1–3 cm;

stipules connate-sheathing and papery at proximal nodes, distinct and submembranous at distal nodes, 1–2.5 mm;

leaflets 7–19, blades oval to obovate, 1–5 mm, apex retuse, surfaces strigulose, sometimes glabrous adaxially.

(5–)10–30-flowered;

axis (1.5–)3–19 cm in fruit;

bracts 1–2 mm;

bracteoles 2.

2–6-flowered, flowers spreading;

axis 0.2–0.8 cm in fruit;

bracts 0.8–1.2 mm;

bracteoles 0.

(2–)4–11 cm.

incurved-ascending, 0.3–2.2 cm.

0.6–1.5 mm.

1.4–2.5 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.

6.8–8.5 mm;

calyx purplish, campanulate, 3.5–4.2 mm, pilosulous, tube 2.3–3 mm, lobes subulate, 1–1.4 mm;

corolla whitish, faintly suffused with pink or purple;

banner abruptly recurved through 80°;

keel 4.8–5 mm, apex round or narrowly triangular and beaklike.

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.

ascending to declined, purple-mottled, ovoid, bladdery-inflated, 10–23 × 8–14 mm, thin, translucent, strigose;

gynophore 0.1–0.8 mm.

12–16.

18–20.