This native perennial is 2-3 feet tall with iris or cattail like leaves rising up directly from a rhizome. You can tell them apart as these will have a mid-rib.  Some leaves will have a spadix grow from them. These are 2-4” long, semi-circular and covered with green/yellow flowers in a diamond pattern. The crushed leaves or root stock has an unforgettable scent. These plants like to grow with wet feet but will do fine in a garden situation. They even live over the winter in pots. They creep by the roots stock but are not difficult to remove if you get too many. They will creep slower in drier soils. Acorus has been used medicinally in the past but please enjoy it only in your garden for its gorgeous upright form as recent studies have found that some varieties are carcinogenic.