Smilacaceae
 Smilacaceae the greenbrier family is a family of flowering plants. Up to some decades ago the genera now included in family Smilacaceae were often assigned to a more broadly defined family Liliaceae but for the past twenty to thirty years most botanists have accepted Smilacaceae as a distinct family. It is considered that the two families evolved around 55 millions years ago during the Early Paleogene possibly near the boundary between Paleocene and Eocene.