Figure 1.
Sampling localities. (a) Maps of Japan and Okinawa. Shown are Fukushima Prefecture in orange (left); Fukushima Dai-ichi Nuclear Power Plant (FDNPP) in the red circle (left); Okinawa Prefecture in blue (left and right); and the 3 sampling localities (Yomitan Village, Nishihara Town, and Yaese Town) in Okinawa in black circles (right). (b) A landscape of the sampling site in Nishihara Town. (c) The creeping wood sorrel O. corniculata with its creeping stem just obtained at a sampling site in Yaese Town.
