Japanese ardisia (Ardisia japonica), also called marlberry, is an evergreen groundcover introduced from Japan and China. It is a low-growing, woody shrub that typically grows to a height of 8 to 12 inches. It spreads slowly by rhizomes at the rate of about 6 inches per year to approximately 3 feet wide.
Poisonous: I have found no supporting evidence that proves this plant is poisonous. However, its suggested by many that it is toxic to humans, livestock and pets. I'm sure the leaves are to large for cats and dogs to even try consuming.