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.

1–25 cm;

stipules membranous, light tan or grayish, 8–21 mm, often with debris adhering, usually prominently glandular, pilose or glabrous abaxially, margins ciliate;

leaflets 17–39+, blades oblong to lanceolate or elliptic, 1.5–22 × 1–6 mm, apex acute or obtuse, surfaces pilose or glabrous, often glandular.

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

3–19+-flowered, dense or nearly capitate.

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.

1–27 cm, axis 0.5–19 cm in fruit, hirsute, pilose, or villous-pilose, hairs spreading;

bract lanceolate to lanceolate-linear, shorter than or surpassing calyx, glandular or glabrous, margins ciliate.

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

whitish, yellowish, ochroleucous, lilac, purple, bluish, or pink-purple, keel tip maculate or not, (9–)11–18(–21) 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 to shortly so, villous, hairs black and white;

tube 4–7 mm, lobes 1–5(–8) mm, usually glandular.

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.

mostly erect, sessile, ovoid to subcylindric, 8–21(–30) × 4–7 mm, bilocular or incompletely so, glandular, strigose to pilose.