Flora of North America species comparison

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

prostrate or ascending, sometimes reduced to crowns, internodes 1–6 cm, concealed by stipules, villous or villosulous.

(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–)3.5–9.5 cm;

stipules 2.5–6 mm, membranous;

leaflets (7 or)9–17(or 19), blades broadly oblanceolate to obovate or cuneate-obovate, 3–13 mm, apex obtuse or truncate, surfaces villous or villosulous abaxially, glabrous or glabrescent 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.

(6–)8–15-flowered, flowers ascending;

axis (0.5–)1–3 cm in fruit;

bracts 1.5–3.5 mm;

bracteoles 0.

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

ascending, arcuate-procumbent or prostrate in fruit, 2.5–9.5 cm.

2–7.5 mm.

0.7–2 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.

13–16 mm;

calyx cylindric to deeply campanulate, 5.2–8 mm, villosulous, tube 4.6–6.5 mm, lobes triangular-subulate, 1.2–2 mm;

corolla reddish lilac or pale purple;

banner recurved through 40°;

keel 10.4–13 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.

ascending (humistrate), stramineous, lunate or crescentically incurved through 0.5 spiral, narrowly ellipsoid to lanceoloid-ellipsoid, 3-sided compressed, (13–)20–30 × 3.5–6(–7) mm, bilocular, fleshy, strigulose;

septum 1.3–2.3 mm wide.

34–77.

27–36.