OSU Herbarium Type Specimen Images and Original Descriptions
Botanical Society of American Online Image Collection
Plants Databases (USDA)
Lady Bird Johnson Wildflower Center in Austin, Texas
Oregon State University, Department of Horticulture, Landscape Plants
Image, Identification, and Information
Noble's Plant Image Gallery
WTU Image Collection: Plant of Washington, Lichens of Washington
United State Forest Service National Lichens & Air Quality Database and Clearinghouse
Mycology Image Gallery: Mount Sinai Hospital Joseph and Wolf Lebovic Health Complex