Genus of conifers that includes varieties of trees and shrubs of different shapes and colors. P. abies is also available in a weeping variety, has bright green needles, brown cylindrical cones, and is used as a Christmas tree. The variety P. glauca is a dwarf conifer used in rock gardens and planters. The variety P. omorika is called Serbian spruce, also used as a Christmas tree and for forming protective barriers.