Answer: buchus

AnswerCrossword Clue
buchusany of several southern African citrus shrubs of the genus Agathosma or the genus Diosma, esp. A. betulina, A. crenulata, or D. ericoides, whose leaves yield a dark-colored oil formerly used as a urinary antiseptic and mild diu
buchusBUCHU, an African medicinal plant, also BUCKU