Distribution of Horned Pondweed (Zannichellia palustris) specimens in the ISM Herbarium |
Zannichellia palustris Records for Schuyler County, Illinois- ISM accession# 59780
- Collector: Rexroat, Rollo T.
Date: 07 Aug 1959 - ISM accession# 59781
- Collector: Rexroat, Rollo T.
Date: 07 Aug 1959
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