Shortleaf pine, Pinus echinata

Shortleaf pine, Pinus echinata Missouri, leaf distance from smelter, km ... 

Discussing sap-stain on soft woods, Boyce says, Certain species are peculiarly susceptible to sap-stain. This is due both to toe character of toe wood and to the climatic conditions of the region where toe species growB. Western white pine, Bpruce, raid southern yellow pine, toe last-named wood including longleaf pine (Pinus palustris Mill.), shortleaf pine (P. echinata Mill.), and loblolly pine (P. tmda Linn.), are very subject to sap-stain, especially blue-stain, while true fir and cedar are not so easily affected. Douglas fir occupies an intermediate position. 

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