Flora of North America species comparison

decumbent, trailing, erect, or ascending, mostly strigulose or villosulous, often glabrous or glabrate at proximal nodes.

erect to ascending, becoming stout, fistulose, strigulose, sometimes glabrate proximally.

5–16(–18) cm;

stipules distinct 1.5–6.5 mm, papery at proximal nodes, firm or submembranous at distal nodes;

leaflets (11 or)13–25, blades ovate, obovate, oblong-elliptic, elliptic, lanceolate-oblong, oblanceolate, or linear-oblong, 5–25(–30) mm, apex usually obtuse, retuse, or truncate and apiculate, rarely subacute, surfaces glabrous.

6–12(–15) cm;

stipules 3–9.5 mm, submembranous becoming papery-scarious, pallid;

leaflets 11–21(or 23), blades narrowly elliptic-oblanceolate to broadly obovate or oblong-obovate, 5–25 mm, apex obtuse to retuse, surfaces proximally glabrous, distally pubescent abaxially, glabrous adaxially.

(10–)12–30(–35)-flowered, flowers subhorizontal or ascending;

axis (2–)2.5–12(–17) cm in fruit;

bracts 1–3 mm.

10–27-flowered, flowers spreading-ascending;

axis 3.5–10 cm in fruit;

bracts 2–4.2 mm;

bracteoles 0–2.

erect, 2.5–13 cm.

incurved-ascending, (2.5–)4–10 cm.

0.8–4(–4.8) mm.

0.9–3 mm.

(6.4–)7.8–13 mm;

calyx campanulate or ovoid-campanulate, 4–6.6 mm, strigulose, tube (2.5–)2.6–4.3 mm, lobes subulate, deltate, or triangular, 0.7–2.6 mm;

corolla ochroleucous, yellowish, or greenish white;

banner abruptly recurved through 60–90°, (6.4–)7.8–13 mm;

keel (6.2–)7.1–10.8 mm, apex narrowly deltate and triangular, subacute, somewhat beaklike.

(17–)20–25(–27) mm;

calyx (7.7–)8.2–10.5 mm, sparsely to densely strigulose, tube (5.3–)5.7–7.8 mm, lobes subulate, 1.8–3.1 mm;

corolla purple, wing tips pale or white;

banner recurved through 40°;

keel (9.6–)11.2–16.4 mm, apex bluntly triangular.

spreading or ascending (sometimes humistrate), pale green, sometimes purple-tinged or -speckled, becoming stramineous, obliquely ovoid, semi-ovoid or semi-ellipsoid, bladdery-inflated, somewhat obcompressed, 25–60 × 12–32 mm, beak prominent, papery, ± lustrous, usually strigulose, rarely glabrescent.

firmly attached to receptacle, falling while attached to pedicel, deflexed or declined, green or purplish green becoming stramineous, straight or slightly incurved, narrowly to plumply oblong-ellipsoid, somewhat obcompressed, 20–39 × 7–11 mm, sub-bilocular, thick, fleshy becoming leathery, glabrous or minutely puberulent;

septum 1.3–2.3 mm wide;

stipe 0–0.6 mm.

42–71(–76).

29–52.

= 24.