Conservation Status: Not of concern
T. oregonense has an opaque whitish to yellowish or olivaceous peridium that develops prominent reddish orange to cinnamon colors. The gleba initially is whitish, then becomes brownish with white marbling. The odor is complex and has been described as a mix of garlic, spices, cheese, and other, indescribable, components. It occurs from fall to late winter, principally with young, vigorously growing Douglas-firs.