Zubrowka, Bison Grass Vodka, is a dry, herb-flavored vodka that is distilled from rye. Its flavor is unique and is described as having woodruff, vanilla, coconut, and almond notes. The rye distillate is flavoured with a tincture of bison grass (Hierochloe odorata), which also gives the spirit its yellowish color. This grass grows in the Bialowieza Forest and elsewhere.