Flora of North America species comparison

erect or ascending, sparsely strigulose.

single or to 3, prostrate to ascending or erect, strigulose.

(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–)2–10.5(–12) cm;

stipules distinct, 1.5–4 mm, thinly herbaceous or submembranous;

leaflets (3–)7–13, blades linear, linear-oblong, oblanceolate, or linear-elliptic, rarely obcordate, 3–18 mm, apex obtuse to retuse, surfaces strigose abaxially, strigose or glabrous adaxially.

(5–)10–30-flowered;

axis (1.5–)3–19 cm in fruit;

bracts 1–2 mm;

bracteoles 2.

2–8-flowered, flowers ascending;

axis 0.3–1.5 cm in fruit;

bracts 0.7–2 mm;

bracteoles 0–2.

(2–)4–11 cm.

incurved-ascending, 0.6–2.5 cm.

0.6–1.5 mm.

0.6–1.5 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.

5–7.6 mm;

calyx campanulate, (2–)2.7–3.8(–4) mm, strigose, tube 1.5–2.5 mm, lobes subulate to lanceolate, 0.6–1.5 mm;

corolla whitish, suffused with purple, or pink-purple;

banner recurved through 45°;

keel 3.8–4.8 mm, apex obtuse, deltate.

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.

spreading to declined, green or suffused purple, becoming stramineous, straight or slightly incurved, obliquely ovoid, bladdery-inflated, 15–24 × 6–12 mm, unilocular or semibilocular, thin becoming papery, strigose, hairs straight, appressed;

seed-bearing flange 0.2–1.5 mm wide.

12–16.

7–18.