Buchu is harvested from the dried leaves obtained from three species of Barosma.

• Sometimes added as a component of black currant
• Used for urinary tract ailments, cystitis or urethritis prophylaxis, and prostatitis
• Also treats inflammation and kidney infections

Buchu is harvested from the dried leaves obtained from three species of Barosma

Despite the lack of evidence, buchu is still used today in western herbal medicine for urinary tract ailments, cystitis or urethritis prophylaxis, and prostatitis. It also is used in combination with other herbs such as cornsilk, juniper and uva-ursi. Buchu also is listed in the German Commission E Monographs to treat inflammation, kidney and urinary tract infections, and also is used as a diuretic, but the monograph explains that the plant's activity in these claimed uses has not been substantiated.

The species derive their common names from the shape of the aromatic leaf. Native to South Africa, the buchus grow as shrubs with leathery leaves that have oil-glandular dots on the underside. Odor and taste of the plants is described as spicy, resembling black currant, but also reminiscent of a mixture between rosemary and peppermint. Buchu oil sometimes is added as a component of black currant flavorings. Most commonly, B. betulina is used in commerce.