Spring Flora of Wisconsin
A Manual of Plants Growing without Cultivation and Flowering Before June 15
Norman C. Fassett; Revised and enlarged by Olive S. Thomson
University of Wisconsin Press, 1976
"[For the] professional botanist and botanical buff alike. . . . More than one hundred new illustrations have been added; revisions in content take into account the changing distribution of species, the introduction of new species, and more complete descriptions for many families and genera. . . . Like the seed catalogs, Spring Flora will set you dreaming of the season ahead."—Wisconsin Academy Review
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