| Specimen ID | 230820 |
| Group | Plants |
| Genus | Myriophyllum |
| Species | spicatum |
| Common Name | Eurasian watermilfoil |
| State | TX |
| County | Hays |
| Locality | San Marcos River, upper portion (Study comprises the 7.5 river km between the Spring Lake dam and the stream's confluence with the Blanco River in southeastern Hays Co.) |
| Mapping Accuracy | Approximate |
| HUC8 Name | San Marcos |
| HUC8 Number | 12100203 |
| Map | |
| Collection Year | 1989 |
| Year Accuracy | Publication Year |
| Potential Pathway | unknown |
| Status | established |
| Reference 1 |
| Ref. Number: | 10489 |
| Author: | Lemke, D.E. |
| Date: | 1989 |
| Title: | Aquatic macrophytes of the Upper San Marcos River, Hays Co., Texas |
| Journal: | Southwestern Naturalist |
| Volume: | 34 |
| Issue: | 2 |
| Pages: | 289-291 |
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| Comments | CollectorNumber: LL; TEX |
| Record Type | Literature |
| Museum Cat Number | herb/Univ. Texas; SW TX St |
| Freshwater/Marine | Freshwater |
