Spring wildflowers of the Northeast : a natural history /Author: Gracie, Carol.
Publisher: Princeton, N.J. : Princeton University Press,
Date: c2012. This title can be found in 1 Iowa libraries.
Wildflowers in the field and forest : a field guide to the northeastern United States /Author: Clemants, Steven Earl.
Publisher: New York : Oxford University Press,
Date: 2006. This title can be found in 6 Iowa libraries.
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