Section
Quinquefoliae (White pines)
Pinus lambertiana. Photo: (c) Jason Hollinger, some rights reserved (CC BY-ND)
Pinus, the pines, is a genus of approximately 111 extant tree and shrub species. The genus is currently split into two subgenera: subgenus Pinus (hard pines), and subgenus Strobus (soft pines). Each of the subgenera have several sections within based on chloroplast DNA sequencing. Older classifications split the genus into three subgenera – subgenus Pinus, subgenus Strobus, and subgenus Ducampopinus (pinyon, bristlecone and lacebark pines) – based on cone, seed and leaf characteristics. DNA phylogeny has
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