Flora of North America species comparison

erect or ascending, sparsely strigulose.

prostrate or decumbent, sparsely 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.

1.5–10.5 cm;

stipules distinct, 1–4 mm, mostly herbaceous or submembranous;

leaflets 9–19, blades obovate, oblong-oblanceolate to -obovate, obcordate, suborbiculate, or elliptic, 2–15 mm, apex obtuse or emarginate, surfaces sparsely strigulose abaxially, glabrous adaxially.

(5–)10–30-flowered;

axis (1.5–)3–19 cm in fruit;

bracts 1–2 mm;

bracteoles 2.

(1 or)2–10-flowered, flowers ascending or spreading;

axis (0–)1–4 cm in fruit;

bracts 1–2.5 mm;

bracteoles 2.

(2–)4–11 cm.

ascending, 1–7.5 cm.

0.6–1.5 mm.

1–3.5 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.

5.5–8 mm;

calyx campanulate, 3–4.3 mm, strigulose, hair white or partly black, tube 1.5–2.8 mm, lobes subulate, 1.2–2 mm;

corolla white, banner with pink veins;

banner recurved through 45–90°;

keel 3.6–5 mm, apex bluntly 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.

ascending, spreading, or loosely declined, green, purplish, or purple- or red-mottled becoming brownish or stramineous, incurved, narrowly oblanceoloid or obliquely semi-ovoid, ± inflated, ± 3-sided compressed, (5–)6–26 × 2.7–5 mm, thin becoming papery, finely strigulose, hairs straight, appressed;

gynophore conical, short.

12–16.

6–15.