Red trillium (Trillium erectum) belongs to the Liliaceae (the Lily family). It is a perennial herb that is native to the east and north-east of North America. It is a spring ephemeral, This herb grows in the deciduous forests, and it can reach about 40 cm in height. The leaves are ovate-diamond and arranged in three whorled at the tip stems. They contain calcium oxalate crystals, and should not be consumed by humans. The deep red, 3-petalled flowers bloom atop a 2-8 cm tall stalk from April to May. They have the smell of rotting meat, as they are pollinated by flies.