| Family | Alismataceae |
| Scientific name | Alisma plantago-aquatica L. subsp. orientale (G. Samuelson) G. Samuelson |
| Synonyms | Alisma orientale (G. Samuelson) Juzepczuk; Alisma plantago-aquatica L. var. orientale Samuelson |
| Common name | (Japanese common name) saji-omo-daka (サジオモダカ, 匙面高 [meaning: face with craning neck with spoon leaves]) |
| (English common name) none | |
| Distribution | (Japan) Hokkaido, Honshu (north of Central region) |
| (Other nations) Russia, Korea, China, Mongolia, Myanmar, India | |
| Habitat | Swamp, rice paddy, pond |
| Chromosomal number | 2n=14 (2x) |
| Description | Leaves 5-17cm long, 3-7cm wide, petioles 20-50cm long. Scapes 40-120cm tall. Flowers white ca. 7-8mm across, flowering in June to October. Perennial plants. |
| Reference | Alisma plantago-aquatica L. subsp. orientale (Sam.) Sam. |
| Alisma plantago-aquatica Linnaeus | |
| Compositions for treating eye didcomfort containing herbals and/or nutritional supplements and/or minerals and/or vitamins (WIPO Patent WO/2001/091765) | |
| Use of Alisma orientale in cosmetics and compositions thereof (WIPO Patent WO/2006/068776) | |
| Therapeudic agent of hepatic disease containing alismol-relating compound as active indredient (Japanese Patent JP04077420/1992) | |
| Skin care preparation (Japanese Patent JP2001342112/2001) | |
| Foaming agent or cosmetic composition (Japanese Patent JP2004115410/2004) | |
| C-kit expression inhibitor (Japanese Patent JP2004035442/2004) |
| October 2008 at Ohsaka City University Botanical Garden |
October 2008 at Ohsaka City University Botanical Garden |
October 2008 at Ohsaka City University Botanical Garden |
| October 2008 at Ohsaka City University Botanical Garden |