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The "Kusonoha-kaede" (Acer itoanum) belongs to Aceraceae (the Maple family). It is a tall evergreen tree that is distributed throughout Japan's Amami and Okinawa archipelagos. It grows in limestone forests in coastal areas and reaches a height of about 10 to 15 m. The bark is green when young but turns blackish-brown as the tree matures, developing fine vertical fissures. The leaves are ovate to broadly ovate, thin and leathery, with entire margins that are sometimes slightly three-lobed. The three primary veins are distinct, and there are 3 to 5 pairs of lateral veins. Around March, it produces compound corymbs at the branch tips, bearing pale yellow flowers. The fruit is a schizocarp, with two winged segments that form an acute angle. Its Japanese name derives from the resemblance of its leaves to those of the camphor tree (Cinnamomum camphora).
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