Undaria pinnatifida var. distans Miyabe & Okamura
(Please note: only references with the binomials in the title are included. The information is from the Literature database.)
Lee, K.Y. & Sohn, C.H. (1993). Morphological characteristics and growth of two forms of sea mustard, Undaria pinnatifida f. distans and U. pinnatifida f. typica. J. Aquaculture 6: 71-87.