Distribution of Rough Pigweed (Amaranthus retroflexus) specimens in the ISM Herbarium |
Amaranthus retroflexus Records for Greene County, Illinois- ISM accession# 32656
- Collector: Flynn, Alice A.
Date: 20 Sep 1950 - ISM accession# 67050
- Collector: Rexroat, Rollo T.
Date: 21 Jun 1963 - ISM accession# 81131
- Collector: Rexroat, Rollo T.
Date: 02 Oct 1967 - ISM accession# 83146
- Collector: Rexroat, Rollo T.
Date: 12 Aug 1968
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