Haworthiopsis limifolia 'Spider White', formerly known as Haworthia limifolia 'Spider White', is a delightful succulent that forms a rosette of green fleshy leaves etched with strong white lines. The rosette can grow up to 4 inches (10 cm) tall and 6 inches (15 cm) in diameter. The leaves have pronounced ridges running across them, hence the lovely common name "Fairies Washboard." The small white flowers appear on long, slender stems
This cultivar is similar to Haworthiopsis limifolia var. striata, which also has white striations on the leaves.
Source: World of Succulents