⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record kew-230224, with some changes.

Carex rara var. biwensis (Franch.) Kük. ex Matsum. is a synonym of Carex rara subsp. rara

This name is a synonym of Carex rara subsp. rara .

The record derives from WCSP which reports it as a synonym (record 230224) with original publication details: Index Pl. Jap. 2(1): 130 1905.