The genus Lithops is in the family of Aizoaceae, which also includes the various forms of plants known as "Ice Plants" and those called "Mimicry Plants". Lithops are commonly called Living Stones because of their remarkable resemblance to rocks on the ground. In a rock covered landscape, they are nearly indistinguishable from actual stones. In fact, the plant’s ability to blend in using its color and shape is the most startling adaptation of Living Stones. The leaves are not green as with many foliage plants, but various shades of cream, grey, brown, reddish browns, purplish browns, and grass-greens with a myriad of patterns such as darker windowed areas and designs, dots, red lines and areas known as "islands".