jap clover(n = noun.plant) japan clover, japanese clover, lespedeza striata - an annual of tropical Asia naturalized in United States;
is a kind of bush clover, lespedeza
is a member of genus lespedeza

alpine clover, bird's foot clover, buffalo clover, bush clover, calvary clover, clover, clover fern, crimson clover, dutch clover, greek clover, hart's clover, holy clover, hop clover, in clover, italian clover, jap, japan clover, japanese clover, musk clover, nonesuch clover, pin clover, purple clover, red clover, stinking clover, sweet clover, water clover, white clover, white sweet clover, yellow sweet clover