| Specimen ID | 233164 |
| Group | Plants |
| Genus | Marsilea |
| Species | quadrifolia |
| Common Name | European water-clover |
| State | MD |
| County | Anne Arundel |
| Locality | Wagners Pond, Glen Burnie |
| Mapping Accuracy | Accurate |
| HUC8 Name | Gunpowder-Patapsco |
| HUC8 Number | 02060003 |
| HUC10 Name | Patapsco River-Chesapeake Bay |
| HUC10 Number | 0206000312 |
| HUC12 Name | Curtis Creek-Curtis Bay |
| HUC12 Number | 020600031202 |
| Map | |
| Collection Year | 1986 |
| Year Accuracy | Actual |
| Potential Pathway | unknown |
| Status | established |
| Reference 1 |
| Ref. Number: | 10762 |
| Author: | Johnson, D.M. |
| Date: | 1986 |
| Title: | Systematics of the New World species of Marsilea (Marsileaceae). |
| Journal: | Systematic Botany Monographs |
| Volume: | 11 |
| Pages: | 87 |
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| Comments | CollectorNumber: Fessenden 5592 (US) |
| Record Type | Literature |
| Museum Cat Number | herb/ US |
| Freshwater/Marine | Freshwater |
