Flora of North America species comparison

obscured by stipules.

obscured by stipules.

palmately trifoliolate, 0.7–3 cm;

stipules 6–10 mm, hyaline;

leaflet blades spatulate to obovate, 2.5–10 mm, apex subacute to obtuse, surfaces silvery-pilose.

1.5–7.5 cm;

stipules 3–6.5 mm, membranous, pallid, with green midrib;

leaflets 3 or 5, blades oblanceolate, elliptic, or narrowly obovate, 5–17 mm, apex acute to subobtuse, surfaces strigose.

1–3-flowered, subcapitate;

axis obsolete;

bracts sometimes tridentate, 3–6 mm;

bracteoles 0.

1–3-flowered, flowers ascending;

axis to 0.3 cm in fruit;

bracts 1.5–3.5 mm;

bracteoles 0 or 1.

± obsolete.

ascending, prostrate in fruit, 0.5–3.5 cm, mostly shorter than leaves.

± subobsolete.

1.5–3 mm.

12.5–17.5 mm;

calyx 7.3–10.7 mm, silvery-villous, tube 5.8–7.5 mm, lobes linear to narrowly subulate, 1.5–3.7 mm;

corolla whitish to ochroleucous, petals villous abaxially;

banner differentiated into blade and claw, with shoulderlike projections at middle;

keel 10–13 mm.

24.5–32 mm;

calyx cylindric, 12–17 mm, strigulose, hairs white, sometimes also black, tube 10.2–13 mm, lobes subulate, 1.8–3.5 mm;

corolla pink-purple or purple;

banner recurved through 40°;

keel 21.5–24.5 mm.

straight or slightly decurved, narrowly ellipsoid, 7–10 × 2.5–3.5 mm, fleshy becoming leathery, densely strigose-hirsutulous.

ascending, stramineous, ± straight, obliquely lanceoloid-ellipsoid, dorsiventrally compressed, 20–35(–40) × 8–12 mm, unilocular, valves much less than 1 mm thick, thinly fleshy becoming leathery, strigulose, hairs appressed, 0.5–0.7 mm.

8 or 9.

38–54.