| Family | Cyperaceae |
| Scientific name | Cladium jamaicense Crantz subsp. chinense (Nees) T. Koyama (Nees) T. Koyama |
| Synonyms | Cladium jamaicense C. B. Clarke, non Crantz; Cladium jamaicense Crantz var. chinense (Nees) T. Koyama; Cladium chinense Nees; Cladium mariscus Bentham; Cladium mariscus Bentham subsp. chinense (Nees) Govaerts; Mariscus chinensis (Nees) Fernald |
| Common name | (Japanese common name) hito-moto susuki |
| (English common name) none | |
| Distribution | (Japan) Honshu (south of Kanto region), Shikoku, Kyushu, Okinawa |
| (Other nations) Korea, China, Taiwan, India | |
| Chromosomal number | unknown |
| Description | Plants 1-2m tall. Leaves 8-10mm wide. Flowers spikelet 3mm, flowering in August to October. Perennial plants. |
| August 2006 at Tsukuba Botanical Garden |
August 2006 at Tsukuba Botanical Garden |
August 2006 at Tsukuba Botanical Garden |
| August 2006 at Tsukuba Botanical Garden |
August 2006 at Tsukuba Botanical Garden |