Yohimbe
Common Names: yohimbe, yohimbe bark
Latin Name: Pausinystalia yohimbe
The yohimbe tree is a tall evergreen that is native to western Africa. The bark of the tree contains a chemical called yohimbine. The amount of yohimbine in dietary supplements may vary; some yohimbe products have been found to contain very little yohimbine. However, a standardized form of yohimbine -- yohimbine hydrochloride -- is available as a prescription medicine that has been studied and used for the treatment of erectile dysfunction.