Flora of North America species comparison

erect or ascending, strigulose to pilose, cinereous or canescent.

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

3–10(–14) cm;

stipules 2.5–10 mm, scarious;

leaflet blades linear, linear-oblanceolate, or narrowly elliptic, (2–)4–27(–45) mm, apex acute to subobtuse, surfaces strigose abaxially, glabrous adaxially.

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.

9–47-flowered;

axis (2–)3–15(–20) cm in fruit;

bracts (2–)3–7 mm;

bracteoles 0–2.

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

axis (2–)2.5–12(–17) cm in fruit;

bracts 1–3 mm.

erect, 1–4(–5.5) cm, much shorter than subtending leaves.

erect, 2.5–13 cm.

0.3–1.2 mm.

0.8–4(–4.8) mm.

13–17.2 mm;

calyx (7.2–)7.5–11 mm, strigulose to pilose, tube (5.4–)5.7–7.4 mm, lobes lanceolate-subulate, (1.5–)1.8–3.6 mm;

corolla banner recurved through 45°;

keel 10.4–12.8 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.

brown-stramineous, gently incurved, dorsiventrally compressed or 3-sided at dehiscence, carinate by ventral suture, beak laterally compressed, 9–12 × 3.3–5 mm, papery, strigose or glabrous;

stipe 0.7–2.5 mm.

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.

42–71(–76).

= 22.