Flora of North America species comparison

erect or ascending, sparsely strigulose.

erect or ascending, 2–10 cm underground, 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.

4–9(–11) cm;

stipules distinct throughout, 1–5 mm, papery-scarious at proximal nodes, herbaceous at distal nodes;

leaflets 11–21, blades linear or linear-elliptic to subfiliform, 8–30 mm, apex acute, obtuse, or truncate, surfaces strigulose abaxially, glabrate adaxially;

terminal leaflet usually continuous with rachis.

(5–)10–30-flowered;

axis (1.5–)3–19 cm in fruit;

bracts 1–2 mm;

bracteoles 2.

(5–)15–45-flowered, flowers declined and secund;

axis 2–16 cm in fruit;

bracts 1–2 mm;

bracteoles 0.

(2–)4–11 cm.

arcuate-erect, (3.5–)6–12(–15) cm.

0.6–1.5 mm.

2.3–7 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.

13–17 mm;

calyx purplish or whitish, cylindric, 5.5–7 mm, strigose, tube 5–6.6 mm, lobes triangular-subulate, 0.5–1.1 mm;

corolla pale lemon yellow, concolorous;

banner recurved through 35°;

keel (9.5–)10–11.3 mm, apex bluntly or sharply 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.

pendulous, green or reddish becoming stramineous, straight or slightly curved, linear-oblong to lanceoloid or narrowly ellipsoid, strongly compressed, flattened laterally, (14–)20–33 × (3.5–)4–6 mm, papery, ± translucent in age, strigulose;

stipe 8–15 mm.

12–16.

11–17.