[Source] | Itsuro Katanoda"flowers of Ryukyu Islands on hills and fields from Amami"(Nanpo Shinsha),Sumihiko Hatsushima"Flora of the Ryukyus"(Okinawa Seibutsu Kyoiku Kenkyukai),Naoki Ikehara"Okinawan plants field practical use pictorial book vol.5 [The plant of lowlands]"(Shinsei Tosho Shuppan) |