Watch Chain Plant (Crassula pseudolycopodiodes, Crassula lycopodioides, aka Clubmoss Crassula, Rattail Crassula, and Zipper Plant) is a small succulent with tiny green leaves tightly overlapping on the stems. Geometric stemmed plant is described as looking like an aquatic plant. Grows 6 to 12 inches high and sprawls to 12 to 16 inches wide. Does well in well drained soil in light shade to full sun. Also good for containers.