Distribution of Japanese Knotweed (Polygonum cuspidatum) specimens in the ISM Herbarium |
Polygonum cuspidatum Records for Peoria County, Illinois- ISM accession# 33004
- Collector: Chase, Virginius H.
Date: 21 Aug 1950 - ISM accession# 82908
- Collector: Chase, Virginius H.
Date: 27 Aug 1963 - ISM accession# 87163
- Collector: Chase, Virginius H.
Date: 27 Aug 1963 - ISM accession# 87507
- Collector: Chase, Virginius H.
Date: 09 Jul 1962 - ISM accession# 87613
- Collector: Chase, Virginius H.
Date: 03 Aug 1961 - ISM accession# 110273
- Collector: Chase, Virginius H.
Date: 03 May 1964
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