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火炬松(Pinus taeda L.)是美国所有南方松中在其整个的生命周期中生长最快、寿命最长的树种,其树高可达51.86米,胸径1.83米,寿命可在200年以上。自然分布范围亦甚广、东西跨越经度22度(西经75°—97°),南北
Pinus taeda L. (Pinus taeda L.) is the fastest growing tree with the longest life span in all Southern Pine in the United States. Its tree height is 51.86 meters, its DBH is 1.83 meters and its life span is 200 years. Natural distribution is also very wide range of things across longitude 22 degrees (W 75 ° -97 °), north and south