Flora of North America species comparison

incurved-ascending, decumbent, or prostrate, usually sparsely to densely strigulose or strigose-pilosulous, rarely silky-villosulous.

diffuse, prostrate, ascending, or erect, sparsely villosulous.

1–5.5 cm;

stipules connate-sheathing and papery at proximal nodes, mostly connate and herbaceous at distal nodes, turning black in drying, 2–5 mm;

leaflets (5 or)7–13, blades elliptic, linear-elliptic, lanceolate, oblanceolate, or narrowly obovate, 2–12 mm, apex usually acute, sometimes obtuse or retuse and apiculate, surfaces strigose abaxially, silky-strigulose, villosulous, glabrescent, or glabrous adaxially.

(2.5–)4–17 cm;

stipules connate-sheathing at proximal nodes, mostly connate at distal nodes, 3–14 mm, membranous; short-petiolate or subsessile;

leaflets (21 or)23–43, blades obovate, obovate-cuneate, oblong-obovate, narrowly to broadly oblong, or oblanceolate, (2–)3.5–25(–28) mm, apex retuse, emarginate, obtuse, or obtuse and apiculate, surfaces villosulous, sometimes sparsely so or glabrous adaxially, rarely puberulent.

3–7(–11)-flowered, flowers spreading;

axis 0.5–3 cm in fruit;

bracts 0.5–2.7 mm;

bracteoles 0–1.

(15–)20–90(–125)-flowered, flowers nodding;

axis 3–19 cm in fruit;

bracts 1.5–4(–5) mm;

bracteoles 0–2.

0.2–4 cm.

erect or incurved-ascending, (4–)6–15(–18) cm.

1.5–3.5(–4.2) mm.

0.8–5.5(–7) mm.

(4.3–)5.2–9.3 mm;

calyx turbinate-campanulate to campanulate, 2.4–4.5 mm, strigose, tube 1.4–2.2 mm, lobes setaceous, (0.8–)1.3–2.5 mm;

corolla pink-purple, lilac, or whitish, sometimes lilac-tipped or -tinged, banner sometimes purple-veined, keel maculate;

banner abruptly recurved through 90°;

keel (2.9–)3.4–5.6 mm.

(10–)11–15 mm;

calyx campanulate or ovoid-campanulate, gibbous abaxially, (5.5–)5.8–8.2(–9) mm, sparsely to densely villosulous or loosely strigulose, tube (4–)4.3–5.7(–5.9) mm, lobes broadly subulate or triangular, (1.1–)1.3–3(–3.1) mm;

corolla greenish white or cream;

keel (9.7–)10.5–14 mm.

deflexed or declined, stramineous, straight, ellipsoid, obovoid-ellipsoid, oblong-ellipsoid, or linear, laterally flattened, 3.5–12 × 1.8–3.5 mm, bicarinate, papery, strigose;

stipe 0–0.3 mm.

loosely spreading, ascending, or declined, pale green or minutely purple-dotted, becoming stramineous, obliquely ovoid, ovoid-ellipsoid, or semi-ovoid, semi-obovoid, or semi ovoid-ellipsoid, bladdery-inflated, (20–)25–55(–60) × 15–27 mm, thin becoming papery, lustrous, glabrous or villosulous;

sessile.

(4 or)5–8(–11).

(14–)16–38.

= 22.