adjective

(of hair or foliage) having a stiff and prickly texture.

he washed his bristly black hair

prickly,spiky,spiked,thorny,scratchy,stiff,briary,brambly,stubbly,hairy,fuzzy,unshaven,whiskered,whiskery,bewhiskered,bearded,hirsute,rough,coarse,hispid