A check list of coastal plants in Japan

Abstract

　To comprehend Japanese coastal flora and their endangerment status, we investigated the habitats, the life forms, the distributions and the Red Data Book (RDB) categories of Japanese oastal plants by referring to local flora lists and the other literature. In this study, we defined coastal plants as native vascular plants which are found only at coastal areas but are seldom found inland. We listed 280 species (64 families) of coastal plants from Japan. 82 species of them were endemic to Japan. 3 species were parasites. 83 species were ranked in the Japanese national RDB. The distributions and prefectural RDB categories of coastal plants at 45 localities in Japan were shown in an appendix table.