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Flora of Japan

The Japanese Islands have climates that vary from tropical to cold temperate, lying between 25 and 46 degree north latitude. Steep mountains present a complicate topography, which promotes speciation through geographical isolation. Over 5500 species of ferns and seed plants have been identified within the narrow confined of the Islands. In recent survey, we have 5629 native species of vascular plants in Japan, including 10 % of Pteridophyte and 1% of Gymnosperms. About 30% of them are endemic to Japan.

Cypripedium japonicum

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Flora of Japan Database Project is conducted by Japanese Society for Plant Systematist. This project is supported by grants from JSPS, JST, MEXT and EXPO'90 Foundation.