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Abstract

Attempts to identify the species of goldenrods found growing uncultivated in Indiana revealed species which could not be identified by use of any of the manuals commonly used for this section of North America. Then began a search through the literature to find new species and varieties described since the publication of the seventh edition of Gray's Manual and the second edition of Britton and Brown's Illustrated Flora. These were incorporated into the keys given in the manuals so that they would receive consideration at the proper points when specimens were being identified.

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