Flora of North America species comparison

1–10 cm, rachis longer than longest leaflet;

leaflets 11–15, well distributed on rachis, blade surfaces sericeous.

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.

6–18-flowered.

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

erect, 2–15 cm, appressed-pilose, ascending-pilose, or villous-hirsute.

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.

15–18(–20) mm.

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

becoming swollen, accrescent in fruit, constricted at mouth, enclosing mature legume, 10–14(–18) 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.

falling enclosed within calyx prior to dehiscence, ovoid, 6–10 × 4–5 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.