Flora of North America species comparison

usually ascending, rarely decumbent, 0–2 cm underground, strigulose to pilose-villosulous.

erect and incurved-ascending, strigulose.

2.5–12 cm;

stipules 1.5–6 mm, papery at proximal nodes, herbaceous or submembranous at distal nodes;

leaflets (5 or)7–17, blades lanceolate to oblong, (3–)5–30(–32) mm, apex obtuse or emarginate, surfaces usually strigulose, sometimes villous-pilosulous, cinereous, glabrate, or glabrous abaxially, glabrous, glabrescent, or sparsely strigose adaxially.

(2.5–)3–8 cm;

stipules connate at proximal nodes, connate or distinct at distal nodes, 1.5–5.5 mm, papery-membranous;

leaflets (11–)17–25, blades oval-oblong, oblanceolate, narrowly obovate, ovate, or narrowly oblong-elliptic, (3–)4–11 mm, apex obtuse, truncate, or retuse, surfaces strigulose abaxially, glabrous adaxially.

(3–)5–25(–33)-flowered;

axis 1–18(–20) cm in fruit, elongating little after flowering, arising distal to middle of stem;

bracts 1–3.5 mm;

bracteoles usually 0.

(10–)15–25(–30)-flowered;

axis (2.5–)6–18(–22) cm in fruit;

bracts 1–2.5 mm;

bracteoles 0.

incurved-ascending or erect, 3.5–21(–23) cm, usually surpassing subtending leaf, together with racemes usually shorter than stems.

erect or incurved, (2–)4–11 cm, together with racemes usually shorter than stems.

0.5–3 mm.

0.8–1.8 mm.

(6–)7.2–11.5 mm;

calyx 4–6.8 mm, strigulose, tube 3.2–4.5 mm, lobes subulate, 0.7–2.3 mm;

corolla usually purple, pink-purple, pink, lilac, lavender, or whitish, sometimes whitish with maculate keel;

wing apex obtuse;

keel 5.4–7.9 mm, shorter than wings.

6.3–7.2 mm;

calyx marcescent, 3.2–4.1 mm, strigulose, hairs white, black, or fuscous, tube 2.1–2.6 mm, lobes subulate or triangular-subulate, 1–1.6 mm;

corolla whitish, sometimes tinged with lavender;

banner abruptly incurved through 100°;

keel 4.6–5.5 mm.

pendulous, green or purplish, straight or slightly decurved, ellipsoid, obtusely 3-sided, faces slightly convex, flattened or depressed but not sulcate abaxially, 13–25 × 3.5–5.5 mm, subunilocular or semibilocular, papery-membranous, sparsely strigulose, hairs black or black and white;

valves inflexed as hyaline septum 0.2–2 mm wide;

stipe (0.5–)1.5–6.5 mm.

stramineous, straight or nearly so, linear-oblong or ellipsoid, obscurely 3-sided compressed, 13–22 × 3.2–4.1 mm, incompletely bilocular, papery, black-strigulose;

valves inflexed as nearly complete septum 0.8–1.5 mm wide;

stipe 2.2–5 mm.

6–11.

7–13.

= 22.