any of a genus (Pachysandra) of low, dense-growing, hardy evergreen plants of the box family, often used for a ground cover in the shade
See pachysandra in American Heritage Dictionary 4
(păkˌĭ-sănˈdrə)
noun
Any of several plants of the genus Pachysandra, especially the evergreen P. terminalis native to Japan, having toothed leaves and inconspicuous white unisexual flowers. Also called Japanese spurge.