American searocket
Cakile edentula (Bigelow) Hook. [Brassicaceae]
Onihamadaikon (オニハマダイコン, 鬼浜大根)
Lifeform: succulent, herbaceous annual (or biennial)
Habitat: sandy and gravelly beaches
Distribution: exotic, firstly reported from Murakami City, Niigata Prefecture, 1982 (Asai 1982)
Cakile edentula in Hokkaido
The plants were taken at Higashi-Kunebetsu Coast in the city of Hokuto, southern Hokkaido, Japan, on August 4 2008. Now, this species is widespread along the coast.
The same place described above, on September 24 2009.