Quercus prinus

Quercus nigra L./Water oak Quercus prinus L./Chestnut oak Quercus rubra L./Northern red oak Quercus stellata Wangenh./Post oak Quercus velutina Lam./Black oak Quercus virginiana Mill./Live oak Sassafras albidum (Nutt.) Nees/Sassafras Ulmus americana L./American elm ... 

However, Hoffman et al. (1980) have shown that total acidity was conserved as rain passed through a forest canopy (Quercus prinus), although the strong weak acid ratio declined. 

---