Distribution of Thyme-leaved Speedwell (Veronica serpyllifolia) specimens in the ISM Herbarium |
Veronica serpyllifolia Records for Lee County, Illinois- ISM accession# 19342
- Collector: Keithley, Enos
Date: 13 May 1945 - ISM accession# 23305
- Collector: Keithley, Enos
Date: 18 May 1947
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