Distribution of Whorled Milkweed (Asclepias quadrifolia) specimens in the ISM Herbarium |
Asclepias quadrifolia Records for Adams County, Illinois- ISM accession# 12955
- Collector: Fuller, George D.
Date: 03 Jun 1943 - ISM accession# 12956
- Collector: Fuller, George D.
Date: 03 Jun 1943
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