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.

2–9 cm;

stipules membranous, stramineous, glabrous or sparsely pilose, margins ciliate;

leaflets 9–13, opposite, blades lanceolate to elliptic, 4–15(–22) × 1–4(–6) mm, apex acute to obtuse, surfaces sparsely pilose or glabrous.

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

(1 or)2 or 3(–5)-flowered.

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.

2–8 cm, sparsely appressed-pilose, hairs may be black distally;

bract lanceolate, black-pilose.

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

usually purplish, rarely white, 12–17(–20) 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.

campanulate, densely spreading black-pilose;

tube 4.5–6 mm, slightly enlarging, covering less than 1/8 of fruit, lobes 1.5–4(–5.5) 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.

borne aloft, erect, sessile, oblong-ellipsoid, 11–18(–20) × 5–7 mm, subunilocular, membranous, black-pilose or, sometimes, white-pilose, rarely glabrous.

= 32.