Distribution of Late Horse Gentian (Triosteum perfoliatum) specimens in the ISM Herbarium |
Triosteum perfoliatum Records for Madison County, Illinois- ISM accession# 64436
- Collector: Winterringer,glen S.
Date: 24 May 1961 - ISM accession# 64452
- Collector: Winterringer,glen S.
Date: 24 May 1961
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