Distribution of Marsh Elder (Iva annua) specimens in the ISM Herbarium |
Iva annua Records for Pike County, Illinois- ISM accession# 59540
- Collector: Rexroat, Rollo T.
Date: 18 Aug 1959 - ISM accession# 61719
- Collector: Winterringer,glen S.
Date: 14 Sep 1960 - ISM accession# 61815
- Collector: Winterringer,glen S.
Date: 14 Sep 1960
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