Acorus (Sweetflag) is a genus of herb in the family Acoraceae. They are associated with freshwater habitat. They are native to The Contiguous United States, Alaska, and Canada.
Definition: This organism produces this material or substance, either during its life or after death. A produces B if some process that occurs in A has output B.
Definition: A group of species that exploit the same food resources, and/or use the same feeding or foraging methods. http://en.wikipedia.org/wiki/Guild_(ecology)
