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Japan has significant diversity in flora. Of approximately 5,600 total vascular plant species, almost 40% are endemic. [1] This richness is due to the significant variation in latitude and altitude across the country, a diversity of climatic conditions due to monsoons, and multiple geohistorical incidences of connections with the mainland.
Many plants have been introduced to Japan from mainland Asia including important crops like rice and garden plants such as the chrysanthemum. Since the Meiji Restoration, increasing numbers of plants have come from Europe, North America and elsewhere. Native food plants include the water dropwort (Oenanthe javanica) and wasabi (Wasabia japonica).
This category contains articles related to the native flora of Japan. Taxa of the lowest rank are always included. Higher taxa are included only if endemic. Japan is within the larger region of East Asia. For the purposes of this category, "Japan" is defined in accordance with the World Geographical Scheme for Recording Plant Distributions ...
17% of the ecoregion is in protected areas. [1] Protected areas include Fuji-Hakone-Izu National Park, Ise-Shima National Park, Yoshino-Kumano National Park, Seto Inland Sea National Park, Ashizuri-Uwakai National Park, Kirishima-Kinkowan National Park, Unzen-Amakusa National Park, Saikai National Park, and Suigō-Tsukuba Quasi-National Park (349.56 km 2 (134.97 sq mi)).
The Hokkaidō deciduous forests ecoregion (WWF ID: PA0423) covers the northern and southern coasts of the island of Hokkaido, the northernmost of the main islands of Japan. The region sits in the transition zone between the colder subarctic forests to the north and the more temperate forests to the south.
A young plant and 500 seeds were presented to Japan by an American scholar in 1949. The young plant and one from a seed were planted in the south of Kaentei House of the Fukiage Garden. Both were 27 metres (89 ft) high and one was 2.7 metres (8 ft 10 in) and the other 4.1 metres (13 ft) in breast-height circumference in 2001. [18]
According to the IUCN evaluation for UNESCO, 441 taxa of native plants have been recorded, of which 161 of vascular plants and 88 of woody plants are endemic; the only native mammal is the critically endangered Bonin flying fox; of the 195 recorded species of birds, fourteen are on the IUCN Red List; of the two terrestrial reptiles, the Ogasawara snake-eyed skink (Cryptoblepharus ...
Japan lies at the convergence of three terrestrial realms, the Palearctic, Indomalaya, and Oceania, and its flora and fauna combine elements from all three.The ecoregions that cover the main islands of Japan, Honshū, Hokkaidō, Kyūshū, and Shikoku, along with the nearby islands, are considered part of the Palearctic realm.