| Family | Apiaceae (alt. Umbelliferae) |
| Scientific name | Cnidium japonicum Miquel |
| Synonyms | Selinum japonicum (Miquel) Franchet & Savatier |
| Common name | (Japanese common name) hama-zeri (ハマゼリ, 浜芹 [meaning: beach seri (seri = Oenanthe javanica)]), hama-ninjin (ハマニンジン, 浜人参 [meaning: beach carrot]) |
| (English common name) none | |
| Distribution | (Japan) Hokkaido, Honshu, Shikoku, Kyushu |
| (Other nations) Korea, China | |
| Habitat | Seaside (sand beach or rocks) |
| Chromosomal number | 2n=20 (2x) |
| Description | Plants ca. 10-40cm tall. Leaves pinnate, 3-10cm long. Flowers white, inflorescences 1.5-3cm across, flowering in September to October. Seeds 3mm long. Winter annual plants. |
| Reference | Cnidium japonicum Miquel |
| September 2008 at seaside rock wall |
September 2008 at seaside rock wall |
September 2008 at seaside rock wall |