| Specimen ID | State | County | Locality | Year | HUC Number | Drainage Name | Status |
| 283556 | MI | Jackson | Wampler's Lake about 12 miles southeast of Jackson, MI on the border of Jackson and Lenawee counties. | 2008 | 04100002 | Raisin | established |
| 283509 | MI | Washtenaw | Joslin Lake | 2007 | 04100002 | Raisin | established |
| 283511 | MI | Washtenaw | Iron Creek | 2007 | 04100002 | Raisin | established |
| 1561013 | MI | Lenawee | [No locality description provided] | 2014 | 04100002 | Raisin | established |
| 1561064 | MI | Lenawee | [No locality description provided] | 2014 | 04100002 | Raisin | established |
| 1561098 | MI | Lenawee | [No locality description provided] | 2014 | 04100002 | Raisin | established |
| 1669856 | MI | Lenawee | Iron Lake | 2018 | 04100002 | Raisin | unknown |
| 1669868 | MI | Lenawee | Sand Lake | 2018 | 04100002 | Raisin | unknown |
| 1669872 | MI | Lenawee | Wamplers Lake | 2018 | 04100002 | Raisin | unknown |
| 1691971 | MI | Jackson | Vineyard Lake | 2021 | 04100002 | Raisin | unknown |
| 1691981 | MI | Lenawee | Wamplers Lake | 2018 | 04100002 | Raisin | unknown |
| 1611095 | MI | Lenawee | [Wamplers Lake] [No locality description provided] | 2018 | 04100002 | Raisin | established |
| 1561105 | MI | Jackson | [No locality description provided] | 2014 | 04100002 | Raisin | established |
Citation for this information:
U.S. Geological Survey, 2025,
Nitellopsis obtusa: U.S. Geological Survey, Nonindigenous Aquatic Species Database, Gainesville, FL, https://nas.er.usgs.gov, Access Date: 12/4/2025