| Name | Carex laxiflora var. latifolia Boott | 
| Authorship | Boott | 
| Rank | Variety | 
| Placed in | Carex laxiflora Lamarck | 
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Carex laxiflora var. latifolia Boott | 
| Identification made in | [no date] (1) | 
