Distribution of Comb Pondweed (Potamogeton pectinatus) specimens in the ISM Herbarium |
Potamogeton pectinatus Records for Henderson County, Illinois- ISM accession# 68003
- Collector: Rock, Leo
Date: 29 Jul 1964 - ISM accession# 68048
- Collector: Rock, Leo
Date: 29 Jul 1964 - ISM accession# 70770
- Collector: Rock, Leo
Date: 14 Jul 1965 - ISM accession# 71918
- Collector: Dolbeare, Ben L.
Date: 14 Jul 1965
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