Oak, White (Quercus alba) Source: Entire eastern United States, especially in the Central States and down through the Appalachian re­gion. Color: From light brown with a greyish tinge in the heartwood to shades of ochre in the sapwood. Pattern: More pronounced and longer rays than red oak, and more frequently rift-sawn for the comb-grain, pin-striped figure than red oak. Occasionally crotches, swirls and buns. Characteristics: Pores are angular and very numer­ous and filled with a glistening substance called tyloses, which makes this wood especially suitable for water-tight containers (barrel staves) and where water-resistance is required. Tannic acid in the wood protects it from fungi and insects. Closer grained than red oak. Uses: Nearly all common uses of hardwoods, and especially popular where strength and durability are required. Also for water-tight or water-resistant purposes.