Arisaema is a fragrant flower and attractive perennial with all white or pink striped spathe and dark green, three lobed leaf to 18" high. This kind of flower grow in part to full shade in well-drained fertile, evenly moist soil. Arisaena is a genus of about 150 species in the flowering plant family Araceae, native to eastern and central Africa, Asia and eastern North America. Its often call Cobra lilies, particularly the Asiatic species. Arisaemas are tuberous perennials that die back to the ground in winter. Cobra Lily or arisaena is a slender green to purple, white striped spathe and long, down curved tail beneath 7-11 broad, palmate leaves 12-18" tall. Arisaema flowers consists of many parts, the two most prominent are the spathe and spadix. The spathe is the hood of the pitcher, white the spadix is the "stalk" inside the flower that holds the sex organs. In some species the spathe develops into a long threadlike tail. while in other species, it is the spadix that copies this habit.
This flower is one of the more unique members of the plant kingdom. Some plants are male, some are female, some are both and some change back and forth. As a general rule, arisaema are male when young, then when they build up enough energy to have babies, they switch and become female. The year after giving birth they will often revert back to being male. The closest relatives of arisaema appear to be Pinellia and Typhonium although the latter as defined in 2004 seems to be paraphyletic, having given rise to Ariseama and other genera.