Distribution of Cowbane (Oxypolis rigidior) specimens in the ISM Herbarium |
Oxypolis rigidior Records for Lake County, Illinois- ISM accession# 12195
- Collector: Burks
Date: 25 Jun 1938 - ISM accession# 25898
- Collector: Fuller, George D.
Date: 20 Sep 1947 - ISM accession# 37899
- Collector: Winterringer,glen S.
Date: 31 Aug 1951
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