| Specimen ID | 230470 |
| Group | Plants |
| Genus | Hygrophila |
| Species | polysperma |
| Common Name | Indian swampweed |
| State | TX |
| County | Hays |
| Locality | San Marcos River, downstream from Clear Springs Apts. spillway. |
| Mapping Accuracy | Accurate |
| HUC8 Name | San Marcos |
| HUC8 Number | 12100203 |
| HUC10 Name | Upper San Marcos River |
| HUC10 Number | 1210020303 |
| HUC12 Name | Purgatory Creek-San Marcos River |
| HUC12 Number | 121002030302 |
| Map | |
| Collection Day | 5 |
| Collection Month | 7 |
| Collection Year | 1976 |
| Year Accuracy | Actual |
| Potential Pathway | unknown |
| Status | established |
| Reference 1 |
| Ref. Number: | 10598 |
| Author: | Angerstein, M.B., and D.E. Lemke |
| Date: | 1994 |
| Title: | First records of the aquatic weed Hygrophila polysperma (Acanthaceae) from Texas. |
| Journal: | SIDA, Contributions to Botany |
| Volume: | 16 |
| Issue: | 2 |
| Pages: | 365-371 |
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| Comments | CollectorNumber: Litchfield s.n. (SWT) |
| Record Type | Literature |
| Museum Cat Number | herb/Southwest Texas State |
| Freshwater/Marine | Freshwater |