Calamus is a plant. The root (rhizome) is used to make medicine. Organic Non-GMO Vegan Gluten-Free Alcohol-Free Made in the USA OTHER NAME(S): Acore Odorant, Acore Olorant, Acore Roseau, Acorus americanus, Acorus calamus, Acorus gramineus, Acorus Roseau, Bach, Belle-Angélique, Cálamo, Cinnamon Sedge, Flagroot, Gladdon, Grass-Leaf Sweetflag, Grass Myrtle, Kalmus, Myrtle Flag, Myrtle Sedge, Sadgrantha, Sweet Calamus, Sweet Cane, Sweet Cinnamon, Sweet Flag, Sweet Grass, Sweet Myrtle, Sweet Root, Sweet Rush, Sweet Sedge, Ugragandha, Vach, Vacha, Vachha, Vaj, Vayambur. Effects: