火炬松是美国栽植最广泛的松类树种。尽管原产地(阿帕拉契山脉以西)已接近田纳西州南部边界,但它仍是往北几百英里区域内的主要造林树种。在原产地北缘部分地区及更北一些的人 Pinus taeda is the most widely planted pine species in the United States. Although the country of origin (west of the Appalachian Mountains) is close to the southern boundary of Tennessee, it is still the major afforestation species within a few hundred miles north. Some parts of the northern margin of origin and some more north