| Family | Poaceae (alt. Gramineae) |
| Subfamily | Panicoideae |
| Tribe | Andropogoneae |
| Scientific name | Ischaemum aristatum L. var. glaucum (Honda) T. Koyama |
| Synonyms | Andropogon crassipes Steudel; Ischaemum aristatum subsp. glaucum (Honda) T. Koyama; Ischaemum aristatum var. momiyamae (Honda) Hsu; Ischaemum cras-sipes (Steudel) Thellung; Ischaemum crassipes L. var. glaucum Honda; Ischaemum crassipes L. var. hainanense Keng; Ischaemum crassipes L. var. momiyamae Honda; Ischaemum sieboldii Miquel |
| Common name | (Japanese common name) kamo-no-hashi (カモノハシ, 鴨嘴 [meaning: duck's bills]) |
| (English common name) none | |
| Distribution | (Japan) coastal area of Honshu, Shikoku, Kyushu |
| (Other nations) Korea, China, Vietnam | |
| Habitat | Seaside, swamp |
| Chromosomal number | 2n=56 |
| Description | Plants clums 30-90cm tall. Leaves 15-30cm long, 5-8mm wide. Flowers inflorescences 4-7cm long, 5mm wide, flowering in July to November. Perennial plants. |
| Reference | Ischaemum aristatum var. glaucum (Honda) T. Koyama |
| Ischaemum aristatum L. |
| August 2007 at lowland swamp |
August 2007 at lowland swamp |
| August 2007 at lowland swamp |
August 2007 at lowland swamp |
| August 2007 at lowland swamp |
August 2007 at lowland swamp |
| August 2008 at lowland swamp |
August 2008 at lowland swamp |