Distribution of Spiny Pigweed (Amaranthus spinosus) specimens in the ISM Herbarium |
Amaranthus spinosus Records for Pike County, Illinois- ISM accession# 32424
- Collector: Flynn, Alice A.
Date: 14 Jun 1950 - ISM accession# 38435
- Collector: Winterringer,glen S.
Date: 18 Sep 1951
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