Flora of North America species comparison

ascending, decumbent, or sprawling, silky-strigose, villous, or villous-tomentose.

erect or ascending, sparsely villosulous, often glabrous basally.

(1–)2–7(–10) cm;

stipules clasping with margins touching but distinct or shortly connate at proximal nodes, distinct at distal nodes, (1–)2–7(–11) mm, often veined, semileathery;

leaflet blades linear, lanceolate, oblong, elliptic, or elliptic-oblanceolate, 3–33(–35) mm, apex acute, subacute, or obtuse, surfaces glabrous, glabrate, or pubescent.

(4.5–)7–17 cm;

stipules connate-sheathing at proximal nodes, distinct at distal nodes, (3–)4–12 mm, submembranous; short-petiolate or subsessile;

leaflets (11–)17–29(or 31), blades broadly to narrowly lanceolate-elliptic or oblong-elliptic, or oblong-obovate, (4–)7–32 mm, apex obtuse, subacute, truncate and apiculate, or retuse, surfaces villosulous, sometimes glabrescent adaxially.

densely or loosely 6–40-flowered;

axis 1.5–15 cm in fruit, elongating little after flowering;

bracts 1.2–5 mm;

bracteoles 0.

20–60(–65)-flowered, flowers ascending becoming loosely declined or nodding;

axis (4.5–)6–22(–25) cm in fruit;

bracts 2–3.5 mm.

usually erect, rarely humistrate in fruit, (2–)2.5–15 cm, equal to or longer than subtending leaf, together with racemes usually shorter than stems.

erect, (4–)7–17 cm.

0.8–2.2 mm 1.2–3.5 mm in fruit.

1.2–4 mm.

7–13.8(–14.5) mm;

calyx 3.7–6.4 mm, villous or strigulose, tube 2.4–5 mm, lobes subulate, (1–)1.1–4 mm;

corolla white to purplish or creamy white;

wing apex bidentate;

keel (6.1–)6.7–9.6 mm, shorter than wings.

15.3–18(–19) mm;

calyx cylindric or deeply campanulate, (5.5–)8.7–10.3 mm, villosulous, tube 5.9–8.4 mm, lobes subulate or triangular-subulate, 1.6–3.7 mm;

corolla pale cream, white, or whitish;

keel 13.1–14.7 mm.

green, often with red or purple, becoming stramineous, ± straight or slightly curved abaxially, convex adaxially, not sulcate, obliquely ellipsoid, semi-ellipsoid, or narrowly oblong, laterally compressed, 10–30 × 3–9(–11) mm, papery, translucent, usually glabrous, sometimes strigose, hyaline septum 0–0.6 mm wide;

stipe 2.5–8[–10] mm.

spreading or loosely pendulous, stramineous, bicarinate, obliquely elliptic, semielliptic, or rhombic-elliptic, bladdery-inflated, laterally compressed, (21–)25–45 × (6–)8–15.5 mm, thin becoming papery, translucent, lustrous, sparsely strigulose;

gynophore 3–11 mm, densely villosulous.

8–16.

11–18.

= 22.