Euphorbia skottsbergii Sherff , Bot. Gaz. (Crawfordsville) 97: 588. 1936.
Type information:
Holotype [BISH]. C. Skottsberg 122. 11 August 1922. O`ahu: Ewa coral flat.

Note: Koutnik, D.L. 1987. Allertonia 4:331-388

=Euphorbia skottsbergii var. skottsbergii
Note: Koutnik, D.L. 1987. Allertonia 4:331-388

*Verification: David Lorence.

Euphorbia skottsbergii Sherff var. audens Sherff, Bot. Gaz. (Crawfordsville) 97: 589. 1936.
Type information:
Holotype [BISH]. C.N. Forbes 620.Mo. 25 March 1915. Moloka`i: beach near Ka Lae o Ka `Ilio `Ilio. Isotype(s) [MO!].
=Euphorbia skottsbergii var. skottsbergii

*Verification: David Lorence.

Euphorbia skottsbergii Sherff var. kalaeloana Sherff, Bot. Gaz. (Crawfordsville) 97: 589. 1936.
Type information:
Holotype [GH]. J. F. Rock 17034. November 1919. O`ahu: coral plain, back of Barbers Point. Isotype(s) [BISH! [2]].
=Euphorbia skottsbergii var. skottsbergii

*Verification: David Lorence.

Euphorbia skottsbergii Sherff var. vaccinioides Sherff, Bot. Gaz. (Crawfordsville) 97: 589. 1936.
Type information:
Holotype [BISH]. J. F. Rock 14072. April 1918. Moloka`i: west end flats.

Note: Koutnik, D.L. 1987. Allertonia 4:331-388

=Euphorbia skottsbergii var. vaccinioides
Note: Koutnik, D.L. 1987. Allertonia 4:331-388

*Verification: David Lorence.