Flora of North America species comparison

4–14 cm;

stipules stiff, papery, becoming reddish brown, 12–20 mm, free ends caudate-acuminate, pilose to glabrate abaxially, margins ciliate;

leaflets 11–21, blades ovate to lanceolate, elliptic, or oblong, 4–17 × 2–4 mm, apex acute or obtuse, surfaces pilose on midrib abaxially, pilose or glabrous adaxially.

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.

6–10-flowered, subcapitate, slightly elongate in fruit.

(1 or)2 or 3(–5)-flowered.

erect or ascending, 4–15 cm, spreading-villous;

bract lanceolate, shorter to longer than calyx, villous, margins ciliate.

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

bract lanceolate, black-pilose.

yellowish, keel tip not maculate, 13–17 mm.

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

short-cylindric, villous, hairs intermixed black and white;

tube 5–6 mm, lobes 1.5–3.2 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.

erect, sessile or subsessile, ovoid-ellipsoid, 15–21 × 5–7 mm, length less than or equal to 3 times width, partially bilocular, papery, sulcate adaxially, pilose, hairs black and white.

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

= 96.

= 32.