Flora of North America species comparison

erect or ascending, sparsely strigulose.

decumbent to ascending.

(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, 1–3.5 mm, thinly herbaceous becoming papery or membranous;

leaflets 7–15, blades obovate to oval, 3–14 mm, apex obtuse to emarginate or mucronate, surfaces sparsely strigose abaxially, glabrous adaxially.

(5–)10–30-flowered;

axis (1.5–)3–19 cm in fruit;

bracts 1–2 mm;

bracteoles 2.

2–9-flowered, flowers ascending to declined;

axis 0.3–2.3 cm in fruit;

bracts 1–2.5 mm;

bracteoles 0.

(2–)4–11 cm.

ascending or incurved, 1.5–4.5 cm.

0.6–1.5 mm.

1–2.5 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.

7.5–11 mm;

calyx campanulate, 4.5–6.2 mm, strigose, tube 2.5–3.8 mm, lobes subulate, 1.8–2.4 mm;

corolla whitish or tinged lavender;

banner recurved through 45°;

keel 6.5–8 mm, apex deltate, sometimes 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 to declined, greenish, often purple-mottled, becoming stramineous or brownish, slightly incurved, ovoid-ellipsoid, inflated, 14–22 × 6–13 mm, thin becoming papery, minutely strigulose to glabrate;

gynophore 1–2.5 mm.

12–16.

9–13.

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