Haworthia aracnoidea xiphiophylla
(This plant comes in a 3.5 inch pot. You will receive a very similar plant to the one in the picture. It may or may not be blooming at the time of your purchase. The plant is shipped in its pot to prevent any damage to the roots).
Haworthia arachnoidea is a succulent plant with numerous leaves, which are uniformly dark green with no translucent area and leave tips, occasionally drying and forming a protective cover for the rosette. Leaves margins and keels are with translucent spines. Size of the rosettes can reach up to 7 inches (18 cm) in diameter. It is usually solitary or very slowly offsetting plant.
Some of the information in this description has been found at desert-tropicals.com, llifle.com and cactus-art.biz