Home > Iowa Academy of Science > Journals & Newsletters > Proceedings of the Iowa Academy of Science > Volume 37 (1930) > Annual Issue
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
©1930 Iowa Academy of Science, Inc.
Language
en
File Format
application/pdf
Recommended Citation
Johns, M. Rae
(1930)
"Heliantheae of Iowa II,"
Proceedings of the Iowa Academy of Science, 37(1), 161-208.
Available at:
https://scholarworks.uni.edu/pias/vol37/iss1/30