Commonly known as Pines, are the coniferous trees in the genus Pinus in the family Pinaceae. They make up the monotypic subfamily Pinoideae. There are about 115 species of pines.
Pines are divided into two subgenera, based on cone, seed and leaf characters:
* Subgenus Strobus (white or soft pines with pinyon, lacebark and bristlecone pines). Also including pines which were classified in the ducampopinus subgenus. Cone scale without a sealing band. Umbo terminal or dorsal. Seedwings adnate or articulate. One fibrovascular bundle per leaf.
* Subgenus Pinus (yellow or hard pines). Cone scale with a sealing band. Umbo dorsal. Seedwings articulate. Two fibrovascular bundles per leaf.
