Sansevieria is a genus containing around 61 evergreen species in the Asparagaceae family, grown for their stiff and upright leaves. Many species are commonly known as Snake Plant or Mother-In-Law's Tongue. These succulent perennial plants are often grown indoors as houseplants, favoured for their tolerance of neglectful watering and low-lighting. They can also be grown as spectacular specimen plants for desert gardens in warmer climates that do not experience freezing temperatures. Flowering is rare in cultivation, but when they appear, flowers are star-shaped and white in colour. There is great variation within this genus, with plants ranging from succulent desert species to thinner-leaved tropical plants. Most species are stemless, xerophytic (requiring little water) and rhizomatous.