Flora of North America species comparison

1–10 cm;

stipules membranous, soon ruptured, light becoming dark in age, silky-pilose, margins ciliate;

leaflets 5–17, scattered or congested, blades ovate-oblong to narrowly elliptic, 3–15 × 2–6 mm, apex acute or obtuse, surfaces pilose or sericeous.

2–40 cm;

stipules membranous, stramineous to black, ovate to lanceolate, apex acuminate, glabrous, strigose, or pilose abaxially, margins usually ciliate, often with clavate processes;

leaflets 7–45, opposite, subopposite, scattered, or fasciculate, blades oblong to lanceolate or obovate, 1–30(–33) × 1–9(–11) mm, surfaces ± pilose.

(3–)5–18-flowered, subcapitate or slightly elongate.

2–30+-flowered, ± lax in fruit.

1–13 cm, axis 0.5–3(–4) cm in fruit, appressed-pilose to villous-hirsute;

bract ovate-lanceolate to lanceolate, margins involute, shaggy-pilose.

2–36(–48) cm, axis 0.3–10(–23) cm in fruit, pilose, villous-pilose, or glabrate;

bract narrowly lanceolate, longer than pedicel, sometimes surpassing calyx, pilose.

bright pink-purple or bluish purple, 15–19(–20) mm.

white, whitish, yellowish, pink, pink-purple, lavender, blue, purplish-tinged, or purplish, keel tip maculate or not, (10–)12–20(–23) mm.

deeply campanulate, villous to shaggy-villous, hairs mixed blackish and white, appearing gray, 2 mm;

tube 5.5–7 mm, slightly swollen to strongly inflated, variably accrescent, ruptured by fruit or not, lobes 2–4.5 mm.

cylindric, 7–10 mm, hairs white, or black and white, loosely pilose;

tube (3.7–)4–9 mm, lobes 0.5–3(–4) mm.

enclosed in or exserted from calyx, erect, sessile or short-stipitate, ovoid to narrowly oblong, turgid to inflated, 6–15(–20) × 4–6.5 mm, bilocular, papery to nearly membranous, white- or black-villous.

erect, sessile or subsessile, cylindric, 8–27 × 3.5–7(–9) mm, partially bilocular (by intrusion of adaxial suture), papery to leathery or membranous, pilose.