Siskiyou lewisia (Lewisia cotyledon) is a succulent plant, which is part of the Montiaceae family, native to southern Oregon and northern California. Siskiyou lewisia stands out for its fleshy, dark green leaves, which form a rosette at the base of the plant and for its decorative flowers, which appear at the top of the tall stems. Siskiyou lewisia is preferably used for decorating gardens, curbs and rockeries, but it is also found as an indoor plant.