Yôef

The joef is a bush native to cool, temperate streambeds, particularly  seasonally  dry  ones, distantly related to coca. Joef powder, which  is prepared by boiling the  dark green leaves in vinegar, straining the extract, then evaporating the extract, which may be ingested by inhalation or absorption  under the  tongue. If eaten raw, the bitter leaves act as a mild stimulant like caffeine or coca.