| Family | Cyperaceae | 
| Scientific name | Carex dimorpholepis Steudel | 
| Synonyms | Carex cernua Boott ex J. F. Gmelin; Carex cryptocarpa (C. A. Meyer) H. Léveillé & Vaniot; Carex phacodes Matsumura; Carex phacota (Sprengel) Franchet; Carex rubescens Boeckeler | 
| Common name | (Japanese common name) aze-naruko-suge [rice paddy path clapper sedge] | 
| (English common name) none | |
| Distribution | (Japan) Honshu, Shikoku, Kyushu, Okinawa | 
| (Other nations) Korea, China, Taiwan, Vietnam, Malaysia, Myanmar, Nepal, India, Pakistan | |
| Chromosomal number | 2n=62, 76 | 
| Description | Plants 40-70cm. Leaves 4-10mm width. Flowers bisexual sikelet at top and others female spikelets each 3-7cm, flowering in May to June. Perennial plants. | 
| Reference | Carex dimorpholepis Steud. | 
| May 2007 at riverside | May 2007 at riverside |