Flora of North America species comparison

erect or ascending, sparsely strigulose.

prostrate to decumbent, (0–)2–9(–12) cm underground, strigose-strigulose, villous-hirsute, or 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.

1–4.5(–5.5) cm;

stipules usually connate-sheathing at proximal nodes, sometimes distinct throughout, 1–4.5(–5) mm, papery-scarious at proximal nodes, thinly herbaceous at distal nodes;

leaflets (3–)7–13, blades oblanceolate- or obovate-cuneate, 2–12 mm, apex retuse or truncate and apiculate, surfaces villous abaxially, sparsely so adaxially.

(5–)10–30-flowered;

axis (1.5–)3–19 cm in fruit;

bracts 1–2 mm;

bracteoles 2.

(2 or)3–13-flowered, flowers spreading;

axis (0.2–)0.4–1.2 cm in fruit;

bracts 0.8–2.4 mm;

bracteoles 0.

(2–)4–11 cm.

incurved-ascending, 0.4–2.5 cm.

0.6–1.5 mm.

0.7–1.8 mm, disjointing in age.

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.

(5.2–)6–8.5 mm;

calyx shallowly campanulate, 3.2–5.8(–6.2) mm, villous or villosulous, tube 1.3–2.6 mm, lobes linear-lanceolate or setaceous, (1–)1.4–3.6 mm;

corolla whitish or yellowish, banner and keel tips with lilac veins;

banner abruptly recurved through 90–100°;

keel 3.4–5.3 mm, apex bluntly triangular, obscurely beaklike.

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 or declined (often humistrate), pale green or minutely purple-dotted becoming stramineous, straight or slightly incurved, semi-ovoid or ovoid-ellipsoid, bladdery-inflated, somewhat dorsiventrally compressed, 8–20 × (5–)6–11(–13) mm, unilocular or subunilocular, papery-membranous, sparsely long-villous or villosulous.

12–16.

(3–)5–9.