Euphorbia multiformis Hook. & Arn. , Bot. Beechey Voy. 95. 1832.
Type information:
Lectotype [K]. G.T. Lay and A. Collie s.n.. 1826- 1827. O`ahu.
=Euphorbia multiformis var. multiformis

*Verification: David Lorence.

Euphorbia multiformis Hook. & Arn. f. pekelonis O. Deg., I. Deg. & Sherff, in Sherff, Occas. Pap. Bernice P. Bishop Mus. 22(12): 208. 1962.
Type information:
Holotype [F]. Pekelo 7. Moloka`i: north coast, Kahina`akalani.
=Euphorbia skottsbergii var. skottsbergii

*Verification: David Lorence.

Euphorbia multiformis Hook. & Arn. var. celastroides (Boiss.) A. Gray, in Mann, Proc. Amer. Acad. Arts 7: 202. 1867. Flora of the Hawaiian Islands --Basionym
Type Information

*Verification: David Lorence.

Euphorbia multiformis Hook. & Arn. var. haleakalana Sherff, Bot. Gaz. (Crawfordsville) 97: 591. 1936.
Type information:
Holotype [F]. C.N. Forbes 2010.M. 18 March 1920. Maui: East Maui, Auwahi, south slope of Haleakala. Isotype(s) [BISH! [4], BM, CU, GH, K, MIN, US!].

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.

Euphorbia multiformis Hook. & Arn. var. kaalana Sherff, Bot. Gaz. (Crawfordsville) 97: 590. 1936.
Type information:
Holotype [US]. U. S. Expl. Exped. s.n.. 1841. O`ahu: Ka`ala Mts, Wai-Nai [Waianae]. Isotype(s) [BISH!, GH, MO!].

Note: Sherff published collection date as 1840. Koutnik, D.L. 1987. Allertonia 4:331-388

=Euphorbia celastroides var. tomentella
Note: Sherff published collection date as 1840. Koutnik, D.L. 1987. Allertonia 4:331-388

*Verification: David Lorence.

Euphorbia multiformis Hook. & Arn. var. kapuleiensis O. Deg. & Sherff, in Sherff, Bot. Gaz. (Crawfordsville) 97: 591. 1936.
Type information:
Holotype [G]. O. Degener 8053. 25 June 1928. Moloka`i: Kapulei ridge to E of white mountain Kaholoapele, E gully, on arid cliff, under mango trees. Isotype(s) [BISH! [2], CU, F, LCU, NY [2, mfc!]].

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.

Euphorbia multiformis Hook. & Arn. var. lorifolia A. Gray, in Mann, Proc. Amer. Acad. Arts 7: 202. 1867. Flora of the Hawaiian Islands --Basionym
Type Information

*Verification: David Lorence.

Euphorbia multiformis Hook. & Arn. var. manoana Sherff, Bot. Gaz. (Crawfordsville) 97: 591. 1936.
Type information:
Holotype [K]. Maximowitsch 145. O`ahu: Honolulu.

Note: (Is the coll. C. J. Maximowicz 1827-1891?)

=Euphorbia celastroides var. amplectens
Note: (Is the coll. C. J. Maximowicz 1827-1891?)

*Verification: David Lorence.

Euphorbia multiformis Hook. & Arn. var. microphylla Boiss., in de Candolle, Prodr. 15(2): 12. 1862.
Type information:
Holotype [P]. J. Rémy 593. O`ahu.
=Euphorbia multiformis var. microphylla

*Verification: David Lorence.

Euphorbia multiformis Hook. & Arn. var. mohihiensis Sherff, Field Mus. Nat. Hist., Bot. Ser. 17: 576. 1939.
Type information:
Holotype [BISH]. L.M. Cranwell , O. Selling and C. Skottsberg 3009. 19 August 1938. Kaua`i: on ridge E of Mohihi river, Kawaiu Trail. Isotype(s) [GB, K].

Note: BISH sheet has isotype label on it, says holotype is at GB. Couldn't find copy of publication in BISH library, check at US (RKS, 8/95). Koutnik, D.L., 1987. Allertonia 4:331-388

=Euphorbia atrococca
Note: BISH sheet has isotype label on it, says holotype is at GB. Couldn't find copy of publication in BISH library, check at US (RKS, 8/95). Koutnik, D.L., 1987. Allertonia 4:331-388

*Verification: David Lorence.

Euphorbia multiformis Hook. & Arn. var. perdita Sherff, Ann. Missouri Bot. Gard. 25: 52. 1937.
Type information:
Holotype [F]. L. C. A. von Chamisso s.n.. 1816- 1817. O`ahu.
=Euphorbia celastroides var. tomentella

*Verification: David Lorence.

Euphorbia multiformis Hook. & Arn. var. sparsiflora (A. Heller) Sherff, Bot. Gaz. (Crawfordsville) 97: 590. 1936. Flora of the Hawaiian Islands --Basionym
Type Information

*Verification: d.

Euphorbia multiformis Hook. & Arn. var. tenuior A. Gray, in Mann, Proc. Amer. Acad. Arts 7: 202. 1867.
Type information:
Holotype [CU]. H. Mann and W.T. Brigham 101. O`ahu. Isotype(s) [BISH!, F, US!].

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

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

*Verification: David Lorence.

Euphorbia multiformis Hook. & Arn. var. tomentella Boiss., in de Candolle, Prodr. 15(2): 12. 1862.
Type information:
Holotype [P]. J. Rémy 594. 1851- 1855. O`ahu.
=Euphorbia celastroides var. tomentella

*Verification: David Lorence.