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Article Title

Heliantheae of Iowa II

Authors

M. Rae Johns

Document Type

Research

Abstract

The first paper on Heliantheae of Iowa included the genera Galinsoga, Eclipta, Actinomeris, Parthenium, Polymnia, Ambrosia, Iva, and Xanthium. This list was made up of the introduced, the doubtful, and some of the obnoxious weed species of the Tribe Heliantheae. The review covered the history and the distribution of the species in the United States and in Iowa. In the descriptions of the species, emphasis was laid on the minute details of the floral structures in the effort to bring out the distinctive and possibly hitherto unnoted features that mark the species.

Publication Date

1930

Journal Title

Proceedings of the Iowa Academy of Science

Volume

37

Issue

1

First Page

161

Last Page

208

Copyright

© Copyright 1930 by the Iowa Academy of Science, Inc.

Language

EN

File Format

application/pdf

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