Flora of North America species comparison

usually erect, sometimes decumbent and ascending, green or purplish, fistulose when stout, 1–7+ cm underground, strigose.

(3–)5–25(–35) cm;

stipules 3–18 mm, membranous early becoming scarious;

leaflets (7–)13–35, blades lanceolate, lanceolate-oblong, or elliptic, (5–)6–45(–52) mm, apex obtuse, apiculate, or truncate-emarginate, surfaces strigose, sometimes glabrous adaxially.

2–8 cm;

stipules 5–10 mm, membranous becoming papery;

leaflets (1 or)3 or 5, blades obovate to rhombic or elliptic, 6–25 mm, apex obtuse, surfaces densely strigose.

20–100+-flowered, flowers spreading-declined;

axis 2.5–16 cm in fruit;

bracts 1.5–10 mm;

bracteoles 0–2.

2–7-flowered, flowers erect-ascending;

axis 0.2–0.8 cm in fruit;

bracts 2.5–6 mm;

bracteoles 0–2.

erect or incurved-ascending, (2.5–)4–22 cm.

ascending, 1–3 cm.

1.2–3.5(–4) mm.

1.2–4 mm.

11.3–17(–17.5) mm;

calyx short-cylindric, (4.6–)5.5–10.5(–11) mm, strigose or pilosulous, tube 4–8.5 mm, lobes subulate or triangular, 1.2–4.4(–5) mm;

corolla ochroleucous, greenish white, or stramineous;

keel (9.5–)10.2–13.6 mm.

20–28 mm;

calyx cylindric, 12–17 mm, loosely strigulose, tube 10–14 mm, lobes linear-subulate, 1.8–5.5 mm;

corolla ochroleucous or greenish white, often tinged faintly purplish, keel tip purple;

banner recurved through 40°;

keel 18–22 mm.

brown then blackish, straight or incurved, cylindroid, terete, (9–)10–20 × 2.9–5.2 mm, somewhat fleshy becoming stiffly papery or leathery, usually strigose, strigulose, glabrate, or glabrous, rarely puberulent;

sessile or subsessile.

ascending (humistrate), red-purple to stramineous, incurved, ovoid-acuminate, inflated, 17–30(–32) × 10–23 mm, unilocular, fleshy becoming stiffly papery, hirsute, hairs long, lustrous.

(16–)18–26(–28).

28–38.