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The Japanese kenzoi fern (Asplenium x kenzoi) belongs to Aspleniaceae (the Spleenworts family). It is an evergreen perennial fern that is found on the Oosumi Peninsula of Kyushu and Yaku Island in Japan. It is thought to be a natural hybrid between "Hinoki-shida" (Asplenium prolongatum) and "Japanese bird's nest fern" (Asplenium antiquum), and was discovered by Kenzo Satake and others in 1960 in the Kurio district of Yaku Island. The leaves are uniseriate and parted deeply, and the lobes are slightly divided. The rachis has broad wings. Like "Hinoki-shida", it reproduces by asexual buds at the tips of its leaves, and like "Japanese bird's nest fern", it is tolerant of drought. It is grown in Europe and the United States as an ornamental plant.
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