| carex retrorsa | | usa: michigan, otsego co, 0.5 mi s of centre of johannesburg, along e side of rte 32 | | 1331048213 |
| carex retrorsa | | usa: mi, otsego co | | 1839360319 |
| carex retrorsa | | usa: michigan, otsego co. | | 1839361162 |
| carex retrorsa | | usa: michigan, otsego county | | 1878286709 |
| carex retrorsa | | usa: michigan, otsego county | | 1878287301 |