Flora of North America species comparison

ascending or decumbent, 1–9 cm underground, sparsely strigulose.

erect-ascending, 1–7 cm, internodes mostly concealed by imbricate stipules and marcescent leaf remains, strigulose.

(2–)3.5–18 cm;

stipules distinct, 3–10 mm, submembranous, glabrous abaxially; petiolate or subsessile;

leaflets (11–)15–33, blades oblanceolate, oblong-oblanceolate, obovate, suborbiculate, or broadly oval to linear-elliptic, (2–)3–24 mm, apex obtuse, acute, subacute, or truncate-emarginate, sometimes apiculate, surfaces pubescent abaxially, glabrous or glabrescent adaxially.

(2–)5–17 cm;

stipules 2–7 mm, submembranous;

leaflets 7–19(–23), blades obovate, ovate, elliptic, or suborbiculate, 3–21 mm, apex usually obtuse or retuse and mucronate, rarely abruptly cuspidate-acuminate, surfaces strigose or glabrous abaxially, glabrous adaxially.

(5–)6–25(–35)-flowered, flowers ascending or slightly arched;

axis 1–7(–14) cm in fruit;

bracts 2.5–7.5 mm;

bracteoles 0–2.

1–7(or 8)-flowered, flowers ascending;

axis 0.2–2.5 cm in fruit;

bracts 2–5 mm;

bracteoles 0–2.

ascending to spreading, (1.5–)2–16 cm.

0.5–6(–7) cm, together with racemes shorter than leaves.

2–7.5 mm.

3.5–8 mm.

(16–)16.5–25(–27) mm;

calyx usually broadly or deeply campanulate or cylindro-campanulate, rarely cylindric, (6.6–)7.7–14 mm, densely strigulose, pilosulous, ascending-pilose, or villosulous-tomentulose, tube (5.2–)5.6–9.7 mm, lobes subulate or triangular-subulate, (1.3–)1.7–4.2(–5.8) mm;

corolla pink-purple, red-purple, white, whitish (faintly lilac-tinged), lilac, ochroleucous, or suffused pinkish lilac;

keel (10.7–)12–20.7 mm.

15–23(–26) mm;

calyx cylindric, (7–)8.5–13.5(–16) mm, strigulose, tube (5.2–)6–10 mm, lobes subulate or lanceolate-subulate, 1.8–4.5(–6) mm;

corolla pink-purple or white with pale pink veins;

banner recurved through 45°;

keel 11.5–17.5 mm.

green, often red-mottled or suffused with red on adaxial surface, becoming brown or blackish, straight, globose, subglobose, broadly and plumply oblong-ellipsoid, oblong-ovoid, or oblong-obovoid, ± obcompressed, 15–40 × 12–27 mm, fleshy becoming alveolate-spongy or pithy, wrinkled on drying, mesocarp at least 1.2 mm thick, glabrous.

appearing radical, forming ring on ground beneath tufted foliage, ascending, greenish, brightly mottled reddish purple, becoming brownish stramineous, straight or slightly incurved, symmetrically or somewhat obliquely ellipsoid or ovoid-ellipsoid, bladdery-inflated, 35–70(–90) × 15–45 mm, papery, surface lustrous, sparsely strigulose;

gynophore 2–4 mm.

34–77.

38–54.