Flora of North America species comparison

erect or ascending, sparsely strigulose.

erect to sprawling, to 7 cm, internodes often shorter than stipules, villous-villosulous.

(3–)4–12 cm;

stipules connate and scarious-papery at proximal nodes, distinct and herbaceous at distal nodes, 1.5–5 mm;

leaflets (17–)21–29, blades flat or loosely folded, oblong-oblanceolate or elliptic, 3–13 mm, apex obtuse to subacute, surfaces sparsely strigulose abaxially, glabrate or glabrous adaxially.

(1.5–)2.5–9 cm;

stipules 2–10 mm, submembranous;

leaflets (7–)11–19, often crowded, blades elliptic to broadly obovate, 3–13 mm, apex obtuse, acute, or shortly acuminate, surfaces villous.

(5–)10–30-flowered;

axis (1.5–)3–19 cm in fruit;

bracts 1–2 mm;

bracteoles 2.

5–13-flowered, flowers ascending;

axis (0.5–)2–8 cm in fruit;

bracts 2.5–8 mm;

bracteoles 2.

(2–)4–11 cm.

incurved-ascending, decumbent in fruit, (3–)5–13 cm.

0.6–1.5 mm.

0.8–2.2 mm.

5.8–8 mm;

calyx marcescent, 3.4–4.3 mm, strigulose, hairs black and/or white, tube 2.1–2.7 mm, lobes subulate, 1–2 mm;

corolla whitish or, sometimes, greenish ochroleucous, immaculate;

banner abruptly incurved through 90°;

keel 4.2–5.6 mm.

16–18.5 mm;

calyx purplish, usually cylindric, sometimes cylindro-campanulate, 8.2–10.7 mm, villosulous, tube 6.6–8.9 mm, lobes subulate or subulate-triangular, 1.5–3.5 mm;

corolla pink-purple or pallid;

banner recurved through 40°;

keel 14.3–16.8 mm.

stramineous, straight or slightly incurved or decurved, linear-oblong or linear-oblanceolate, 3-sided compressed, 15–30 × (2.5–)3–4 mm, bilocular, papery, glabrous;

valves inflexed as complete septum 1.4–1.9 mm wide;

stipe 1.5–2.5 mm.

ascending (humistrate), gently incurved, obliquely lanceoloid-oblong, obcompressed to 3-sided compressed, (13–)15–25 × 4.5–9 mm, bilocular, fleshy becoming stiffly leathery, densely villous-tomentulose, hairs to 1 mm; inflexed, especially proximal 1/2, as a narrow, complete septum.

12–16.

18–24.