Distribution of Comb Pondweed (Potamogeton pectinatus) specimens in the ISM Herbarium |
Potamogeton pectinatus Records for Carroll County, Illinois- ISM accession# 68409
- Collector: Pickering, Ed
Date: 10 Sep 1964 - ISM accession# 70827
- Collector: Rock, Leo
Date: 10 Aug 1965 - ISM accession# 70830
- Collector: Rock, Leo
Date: 10 Aug 1965
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