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.

1.5–16 cm;

stipules membranous or papery, light tan or pale gray, silky-pilose;

leaflets 5–25, blades narrowly elliptic, lanceolate, or lanceolate-ovate, 4–21 × 1–4 mm, apex acute or obtuse, surfaces silky-pilose.

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

3–22-flowered, subcapitate to loosely racemose in flower, sometimes slightly elongate 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.

2–19 cm, axis 0.5–8(–10) cm in fruit, hairs appressed or some ascending;

bract ovate-rhombic to lanceolate or lanceolate-acuminate, silky-pilose, margins ciliate.

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

bright pink-purple, 17–25 mm, wing petals broadly expanded, often conspicuously 2-lobed apically.

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-campanulate, hispid-hirsute, silky-hairy, silky-pilose, or appressed-silky, hairs white;

tube (5–)6–8(–9.5) mm, lobes 2–6 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.

rupturing calyx but invested by it, erect or spreading, sessile or short-stipitate, stipe to 1.2 mm, cylindric, scarcely to strongly inflated or swollen, (5–)10–14(–20) × 2.5–10 mm, bilocular or semibilocular, papery, villous, hairs whitish, shiny, (1–)1.5–3 mm.