(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

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

European searocket
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