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.

2–22 cm;

stipules subherbaceous, light tan, grayish, or purplish, well separated on stem, 7–20 mm, ± pilose abaxially, margins ± ciliate;

leaflets (9–)15–41, opposite or subopposite, blades ovate, lanceolate, or lanceolate-oblong, 3–25 × 1–8(–11) mm, apex acute to obtuse, surfaces pilose or glabrous adaxially.

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

(2–)4–25[–30+]-flowered, extending beyond leaves.

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.

3.5–32(–36) cm, axis 3.5–10 cm in fruit, villous-pilose;

bract linear to lanceolate-oblong, pilose.

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

bright pink-purple, purple, or whitish and sometimes suffused with purple, [lilac or blue-purple], 5–10.5(–12) 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, 3–8 mm, villous-pilose, hairs stiff, black;

tube 2–3.5(–4.5) mm, lobes 1.5–5 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.

spreading-declined, subsessile to short-stipitate, oblong to ellipsoid, 8–18 × 3–4.5 mm, subunilocular, thinly papery, pilosulous, hairs white and/or black.

= 16.