Premise: Fatsia japonica(syn. "Aralia japonica" Thunb., "A. sieboldii" Hort. ex K.Koch), also glossy-leaf paper plant, fatsi, paperplant or Japanese aralia, is a species of flowering plant in the family Araliaceae, native to southern Japan, southern Korea, and Taiwan.
Hypothesis: Fatsia japonica is not referred to as fatsi.