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湿地松原产美国东南部,是美国南方松四个主要树种(火炬松、湿地松、长叶松、短叶松)之一.在美国,有人将它分为两个变种,即湿地松(Pinus elliottii Engelm var.elliottii)和南佛州湿地松(P.elliottii var.densa little and Dorman).我国引进的属于前一种.由于该树种生长快,材质好,产脂量高,在美国松类栽培中占有很重要的地位.但其自然分布区却是四个松树中最狭小的,南北仅跨越8个纬度带(从北纬25°30′的佛罗里达半岛南部到北纬33°30′的南卡罗来纳州沿海平原北部),跨越经度10°(从东经80°的南卡罗来纳州沿海越过佐治亚、阿拉巴马和密西西比州到东经90°的路易桑那州的东部).从北纬 来说,相当于我国闽南地区到淮河一线.
Pinus elliottii is one of the four main species of southern American pine (Pinus taeda, Pinus elliottii, Pinus thunbergii, Pinus thunbergii) and is classified into two varieties in the United States, Pinus sylvestris elliottii Engelm var.elliottii) and the South Florida Psoriasis (P.elliottii var.densa little and Dorman) .Introduction of China belongs to the former species.Because the species grow fast, good material, high fat yield, in the United States of pine Cultivation occupies a very important position, but its natural distribution area is the smallest of the four pine trees, and the north and south span only 8 latitudes (from the southern Florida peninsula at 25 ° 30’N to South Carolina at 33 ° 30’N North of the State Coastal Plain) across 10 ° longitude (east of Louisiana via Alabama and Mississippi to the east of Louisiana at an angle of 90 ° East from the coast of South Carolina over 80 ° East.) From northern latitudes, Area to the Huaihe line.