This name is a synonym.
Tetrapanax ricinifolius (Siebold & Zucc.) K.Koch, Wochenschr. Gärtnerei Pflanzenk. 2: 371 (1859).
Kalopanax ricinifolius (Siebold & Zucc.) Miq., Ann. Mus. Bot. Lugduno-Batavi 1: 16 (1863).
Brassaiopsis ricinifolia (Siebold & Zucc.) Seem., J. Bot. 2: 291 (1864).
Acanthopanax ricinifolius (Siebold & Zucc.) Seem., J. Bot. 6: 140 (1868).
Kalopanax ricinifolius var. typicum Nakai, J. Arnold Arbor. 5: 12 (1924), not validly publ.