Sylvan Runkel (1906–1995) was the coauthor of five books about midwestern wildflowers, including Wildflowers of the Tallgrass Prairie (Iowa paperback, 2009) and Wildflowers of Iowa Woodlands (Iowa paperback, 2009). A vigorous promoter of conservation for many years, he was honored by the dedication of the Sylvan Runkel State Preserve in 1996. Conservationist
Dean Roosa has served as Iowa’s state ecologist, board member for the Iowa Chapter of the Nature Conservancy and the Natural Areas Association, chair of the Iowa Natural History Association, and president of the Iowa Ornithologists’ Union. He is the coauthor of Wildflowers of the Tallgrass Prairie and The Vascular Plants of Iowa (Iowa, 1994).
Arnold G. van der Valk teaches ecology at Iowa State University and is the editor of the journal Plant Ecology. In 2004, he was named Distinguished Iowa Scientist by the Iowa Academy of Science; four years later, he earned a Merit Award in recognition of his outstanding contribution to wetland science and was elected Fellow of the Society of Wetland Scientists.
A professor of ecology and botany at Drake University, Thomas Rosburg has served as president of the Iowa Academy of Science and as a member of the board of directors for the Iowa Chapter of the Nature Conservancy. Winner of the Sierra Club Environmental Educator Award, the Prairie Advocate Award, the Governor’s Iowa Environmental Excellence Award, and many other distinctions, he is also the photographer for many University of Iowa Press publications, including Trees in Your Pocket (2012) and Wildflowers of the Tallgrass Prairie (2010). He has published over 360 images in a wide range of books, magazines, calendars, and brochures, including National Geographic, Sierra, The Iowan, and the American Journal of Botany.