(First upload on August 25 2008. Last on September 21 2019) [ 日本語 | English ]

Cakile edentula (Bigelow) Hook.

Mount Usu / Sarobetsu post-mined peatland
From left: Crater basin in 1986 and 2006. Cottongrass / Daylily

Cakile Mill. (オニハマダイコン)
One exotic species is recorded from Japan
Onihamadaikon (オニハマダイコン, 鬼浜大根), (American) searocket
Lifeform: succulent, herbaceous annual (biennial, or perennial)
Distribution: exotic, firstly reported from Murakami City, Niigata Prefecture, 1982 (Asai 1982)

Hokkaido Blue List: A3 (biological invasion, 生物学的侵入)

Habitat: sandy and gravelly beaches (海浜)


Chromosome number: 2n = 18
Varieties (USDA)

ssp. edentula

var. edentula, the type
var. lacustris Fernald

ssp. harperi (Small) Rodman


Cakile edentula in Hokkaido

One exotic species has been recorded from this genus in Japan.

Cakile1 Cakile2 Cakile3
Cakile4 Cakile5 Cakile6
[1-4] in Denshih-hama Coast, Muroran. [1/2] on September 17 2013. [3] on September 8 2014. [4] on September 9 2019. [5] at Higashi-Kunebetsu Coast (東久根別) in the city of Hokuto, southern Hokkaido, on August 4 2008. Now, this species is widespread along the coast. [6] along Sunasaki Coast (砂崎海岸), southern Hokkaido, on August 29 2016. [7] a dead patch along an unpaved road near Zenibako Coast, where wind-power farm is established, near Sapporo on September 16 2020. Records: in on August 20 2012 and September 3 2018. In Higashi-Kunebetsu Coast on September 24 2009.

Cakile maritima Scop. in Western Australia

Oshu-onihamadaikon (オウシュウオニハマダイコン*), European searocket (* tentative translation)
Lifeform: succulent annual
Distribution: native to Europe (exotic to WA)
Habitat: sandy and gravelly beaches

[1/2] at the Two Rocks, Western Australia (西オーストラリア), on October 3 2003.
Cakile1 Cakile2