Flora of North America species comparison

erect or ascending, sparsely strigulose.

prostrate, 0.5–3(–7) cm, internodes short, length slightly 2 times stipules, 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.

2–10 cm;

stipules distinct throughout, 1–4 mm, papery-scarious;

leaflets 11–15(or 17) blades linear-elliptic or oblanceolate, 3–10 mm, apex acute or obtuse, surfaces usually strigulose, sometimes glabrescent adaxially.

(5–)10–30-flowered;

axis (1.5–)3–19 cm in fruit;

bracts 1–2 mm;

bracteoles 2.

2–5-flowered, flowers ascending;

axis 0.5–2 cm in fruit;

bracts 1.5–2.5 mm.

(2–)4–11 cm.

ascending, (1.5–)2.5–8 cm.

0.6–1.5 mm.

1.5–2 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.

9.5–11 mm;

calyx purplish, cylindric or campanulate, 5–5.5 mm, strigulose, tube 3–3.5 mm, lobes subulate, 1.5–2 mm;

corolla ochroleucous, banner and keel with purple tips or veins;

keel 7–7.5 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.

separating from receptacle at maturity, ascending (humistrate), red-mottled, gently incurved, narrowly oblong, slightly 3-sided compressed, 12–20 × 3.5–5 mm, sub-bilocular, thin becoming papery, sparsely strigulose;

septum partial, 0.2–0.6 mm wide;

sessile, gynophore to 1 mm.

12–16.

8–10.