| Specimen ID | 229464 |
| Group | Plants |
| Genus | Marsilea |
| Species | quadrifolia |
| Common Name | European water-clover |
| State | IL |
| Locality | state non-specific |
| Mapping Accuracy | Centroid |
| Centroid Type | State |
| Map | |
| Collection Year | 1955 |
| Year Accuracy | Actual |
| Potential Pathway | unknown |
| Status | established |
| Reference 1 |
| Ref. Number: | 10632 |
| Author: | Henry, R.D., and A.R. Scott |
| Date: | 1981 |
| Title: | Time of introduction of the alien component of the spontaneous Illinois vascular flora. |
| Journal: | The American Midland Naturalist |
| Volume: | 106 |
| Issue: | 2 |
| Pages: | 318-324 |
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| Reference 2 |
| Ref. Number: | 10342 |
| Author: | Mohlenbrock, R.H. |
| Date: | 1986 |
| Title: | Guide to the vascular flora of Illinois, rev. ed. |
| Publisher: | Southern Illinois University Press |
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| Record Type | Literature |
| Freshwater/Marine | Freshwater |
