Flora of North America species comparison

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

prostrate, decumbent, spreading, or erect, compact to elongate, usually strigulose, sometimes villosulous or villous.

(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.

(0.2–)0.4–2.6 cm;

stipules connate-sheathing, sometimes distinct at distal nodes, 1–12 mm, scarious throughout, or herbaceous becoming papery, or stiff and spiny, apex acuminate, spinulose, or callous-mucronate;

leaflets (3 or)5–9, blades decurrent, continuous with rachis, linear to narrowly elliptic or lanceolate, (1–)3–15(–17) mm, apex spinulose, surfaces usually strigose, rarely 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.

1–3-flowered, flowers declined;

axis to 0.5 cm in fruit;

bracts 0.8–3.5 mm;

bracteoles 0.

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

subobsolete or 0.1–0.6(–3) cm.

2–7.5 mm.

0.5–2 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.

(3.9–)4–10 mm;

calyx (2–)2.4–8.3 mm, strigose, tube 1.2–2.8(–3.3) mm, lobes subulate, setaceous, or spinulose, (0.5–)1.4–5 mm;

corolla usually pink-purple or whitish, sometimes pink-, lilac-, or purple-tinged;

banner recurved through 45°;

keel 3–6 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.

declined or spreading, stramineous, straight or slightly curved, ellipsoid to oblong-ellipsoid, lenticular, ovoid, ovoid-lenticular, lanceoloid-ellipsoid, or lanceoloid-acuminate, laterally compressed, 3–10 × (0.6–)1.4–4 mm, papery, strigose;

sessile.

34–77.

2–8.