Also known as the Garry Oak, this tree’s typically gnarled branches produce a beautiful, rounded outline in winter. It can easily live to 500 years. Leaves are dark green, and the autumn color is usually light brown. The Oregon White Oak is the most abundant and widely distributed oak in Oregon, and it is the only native oak found in eastern Oregon. The famous botanist David Douglas discovered this tree and named it for his friend Nicholas Garry of the Hudson’s Bay Company.