JAPONICUM ssp. BONINENSE R.Stephenson
Synonym : Sedum boninense Yamamoto ex Tuyama (1936)
Distribution : Japan (Bonin Islands [= Ogasawara Islands])
Description (by 't Hart & Bleij in IHSP, 2003) :
Differs from ssp. uniflorum :
Subterranean tubers present.
Leaves linear-elliptic to linear-obovate, 4 - 8 mm.
Inflorescences : Flowering branches erect; inflorescences cymes with 3 cincinni.
Note :
In an article on the Sedum species of the Bonin Islands, Japan, Ito et.al. conisder Sedum boninense to deserve the rank of a species and describe a new species, S. mukojimense from the same region, up to now thought to be a variant of S. boninense.