Flora of North America species comparison

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

erect and ascending, in clumps, sparsely strigulose.

(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.

7–20 cm;

stipules 1–4 mm, membranous becoming papery;

leaflets (17 or)19–25(or 27), blades ovate, elliptic, or obovate to obcordate, 3–12 mm, apex retuse or obtuse, surfaces sparsely strigulose abaxially, silvery-canescent 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.

(5–)7–12(–15)-flowered, flowers spreading-ascending;

axis (4–)6–18 cm in fruit;

bracts 1–2.4 mm;

bracteoles 0–2.

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.

arising from near or proximal to middle of stem, erect and ascending, 9–20 cm, together with racemes as long as or longer than stems.

0.8–2.2 mm 1.2–3.5 mm in fruit.

1–4.8 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.

12.6–15.7 mm;

calyx 6.1–7.6 mm, strigulose-villosulous, tube 4.1–5 mm, lobes subulate, 2–2.8 mm;

corolla ochroleucous;

banner recurved through 45°;

keel 9.7–11 mm, apex bluntly deltate.

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.

ascending, stramineous, slightly incurved, linear-lanceoloid, 3-sided compressed, 24–42 × 3.5–5.5 mm, thin becoming papery, glabrous;

gynophore stout, (0.8–)1.2–2.5 mm.

8–16.

20–24.