Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
28174
| CA | Riverside | Drainage canal south of Mecca, at junction of Hwy 111 and Johnson Avenue [St.]. | 1974 |
18100204
| Salton Sea | locally established |
278785
| CA | Riverside | Drainage canal south of Mecca, at junction of Hwy 111 and Johnson Avenue [St.]. | 1974 |
18100204
| Salton Sea | locally established |
29456
| CA | Riverside | irrigation canal at north end of Salton Sea | 1980 |
18100204
| Salton Sea | established |
550941
| CA | Riverside | Johnston St. Drain, very headwaters just south of Hwy 111 | 1978 |
18100204
| Salton Sea | unknown |