Distribution of Declined Trillium (Trillium flexipes) specimens in the ISM Herbarium |
Trillium flexipes Records for Pope County, Illinois- ISM accession# 37593
- Collector: Winterringer,glen S.
Date: 07 May 1951 - ISM accession# 82347
- Collector: Koelling, Alfred C.
Date: 03 May 1969
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