BUCHU, or Buka Leaves, the produce of several shrubby plants belonging to the genus Barosma (nat.
The other species which yield buchu are B.
Buchu leaves contain a volatile oil, which is of a dark yellow colour, and deposits a form of camphor on exposure to air, a liquid hydro-carbon being the solvent of the camphor within the oil-glands.
Until the advent of the modern synthetic products buchu was valued in diseases of the urinary tract, but its use is now practically obsolete.
The leaves of a closely allied plant, Empleurum serratulum, are employed as a substitute or adulterant for buchu.
The British Pharmacopoeia contains an infusion and tincture of buchu.