Crossword puzzle clue "yuletide evergreens"

FIR, an evergreen tree

CACAO, (Nahuatl) a small evergreen tree of South America and the West Indies, from the fruit of which cocoa and chocolate are prepared

CAROB, (Arabic) the sweet-flavoured seed of an evergreen tree, aka locust bean

CONIFER, any tree or shrub of the group Coniferae, including yews, pines, firs, etc., which typically bear cones