Acorus calamus is a semi-aquatic plant that likes to grow with “wet feet”, often alongside Irises, Cattails, and other waterweeds. It is well known for it's bitter taste, spiciness and it's aromatic smell. Its aroma makes calamus essential oil valued in the perfume industry. In Europe it was often added to wine and it is thought that calamus is one of the possible ingredients of absinthe. The English chewed on it when they were unable to acquire tobacco during the great depression. Ancient Indians believed in Calamus for memory improvement, prolongation of life span and sexual potency.
It has been used medicinally for a wide variety of ailments in many cultures for thousands of years. It is most effective for nausea and a "nervous" tummy associated with panic attacks and anxiety issues. Be mindful to not have too much though, as consuming large doses can easily overstimulate the stomach and provoke vomiting.
Chewing Calamus can alleviate the nausea of car sickness and other types of motion sickness.