| Specimen ID | 259316 |
| Group | Plants |
| Genus | Egeria |
| Species | densa |
| Common Name | Brazilian waterweed |
| State | CA |
| County | Sacramento |
| Locality | Alder Creek, mouth of creek draining into Lake Natoma |
| Mapping Accuracy | Accurate |
| HUC8 Name | Lower American |
| HUC8 Number | 18020111 |
| HUC10 Name | American River |
| HUC10 Number | 1802011102 |
| HUC12 Name | Upper American River |
| HUC12 Number | 180201110201 |
| Map | |
| Collection Day | 23 |
| Collection Month | 8 |
| Collection Year | 1991 |
| Year Accuracy | Actual |
| Potential Pathway | unknown |
| Status | collected |
| Reference 1 |
| Ref. Number: | 10714 |
| Author: | Regents of the University of California |
| Date: | 2015 |
| Title: | Jepsen online interchange for California floristics. |
| Publisher: | University and Jepson Herbaria, University of California, Berkeley. |
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| Comments | Large aquatic populations in lower Alder Creek, in shallow water mostly on E side of Hwy 50. Flowers white, held above water |
| Record Type | Literature |
| Earliest Record | drainage |
| Museum Cat Number | CDA12697 |
| Freshwater/Marine | Freshwater |
