Carex morrowii, the kan suge, Morrow's sedge, Japanese grass sedge or Japanese sedge (a name it shares with Carex oshimensis), is a species of flowering plant in the family Cyperaceae.

[2][3][4] It is native to central and southern Japan, and has been introduced to Belgium, Denmark and Austria.

[1] An ornamental sedge with a large number of (mostly variegated) cultivars, it tolerates heavy shade and wet soil, and is erosion and deer-resistant.

[3] Consequently it is recommended as a slowly spreading ground cover, for naturalizing, and in rain gardens.

[3] The following varieties are currently accepted:[1] A large number of cultivars are commercially available, including: