Japan Flora: Shrub 40-80 cm. high; the branches horizontally spreading, slender, appressed-pilose; leaves petioled, the leaflets ovate to oblong, 2-4 cm. long, 1-3 cm. wide, usually acute, deep green, gla­brous or glabrescent on upper side, appressed-pilose beneath; racemes to 7 cm. long, subsessile; flowers 10-12 mm. long, white with purple blotch; calyx-teeth equal, ovate, obtuse to subacute, as long as or shorter than the tube, obsoletely 1- nerved, the upper 2 connate, the bracts ovate, obtuse, few­nerved, the bracteoles broadly ovate, many-nerved, usually ciliolate, usually slightly longer than the calyx-tube; legumes oblong, loosely appressed-pilose, about 12 mm. long, about 4 mm. wide.  July-Sept. Rocky places along rivers in moun­tains.

Honshu, Shikoku, Kyushu; common. China

f. albiflora Honda. Flowers white; rare.

var. kinashii Ohwi. Hairs of branches and racemes spreading.  Occurs with the typical phase; rare.