| united states | | carex lenticularis var. impressa | varietas | 3 | 0 |
| united states | california | carex lenticularis var. impressa | varietas | 5 | 0 |
| united states | louisiana | carex lenticularis var. impressa | varietas | 12 | 0 |
| united states | oregon | carex lenticularis var. impressa | varietas | 2 | 0 |