Flora of North America species comparison

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

erect or ascending, densely silky-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.

(5–)7–17(–20) cm;

stipules connate-sheathing at proximal nodes, distinct at distal nodes, 2–14 mm, scarious;

leaflets (17–)21–35, blades linear, linear-oblong, -elliptic, -lanceolate, or -oblanceolate, (3–)6–26 mm, apex obtuse and apiculate or emarginate, surfaces strigulose, sometimes 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.

15–45-flowered, flowers nodding;

axis (5–)7–17 cm in fruit;

bracts 1.5–4 mm;

bracteoles 0–2.

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

erect, 6–24 cm.

0.5–3 mm.

1.2–5 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.

12.6–17.6 mm;

calyx (6.5–)8–11.4 mm, densely silky-strigulose, hairs white, tube 5–7.2 mm, lobes lanceolate-subulate, (1.5–)2–4.2 mm;

corolla ochroleucous, immaculate;

banner gently and slightly recurved;

keel 11.5–14.7 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.

spreading to pendulous, stramineous, obliquely ovoid-ellipsoid or semi-ovoid, bladdery-inflated, somewhat compressed laterally, (20–)25–43 × 13–18 mm, thin becoming papery-membranous, translucent, lustrous, sparsely strigulose;

stipe filiform, 14–40 mm, pubescent.

6–11.

(16–)18–30.

= 22.