Yarod (English spelling) Ochrosia nakaiana

Japanese: ヤロード（英語表記）Ochrosia nakaiana

An evergreen tall tree of the Apocynaceae family that grows wild on each island of the Ogasawara Islands. It grows to a height of several meters, sometimes exceeding 10 meters. The trunk is light gray-white and stands upright, with yellow bark on the inside. It is said that the name "Yarodo" was derived from the Western islanders' name for this wood, which was corrupted to "yellow wood." The leaves are thick and glossy, 10-15 cm long, rounded at the tip, and characterized by dense rows of lateral veins that branch out at almost right angles to the midrib. When damaged, both the leaves and branches secrete a white juice that is poisonous. In summer, panicles are formed at the ends of the branches, and many small, yellow-white, star-shaped, gamopetalous flowers grow. The fruit consists of two ellipsoidal caryopsis that face each other and turn bright yellow when ripe.

Source: Encyclopaedia Britannica Concise Encyclopedia About Encyclopaedia Britannica Concise Encyclopedia Information

Japanese:

キョウチクトウ科の常緑高木で，小笠原諸島の各島に自生する。高さ数m，ときに 10mをこえる。幹は明るい灰白色で直立し，樹皮の内側は黄色。この材を欧米系の島民が yellow woodと呼んだのがなまってヤロードの名になったといわれる。葉は厚く光沢があり，長さ 10～15cmで先端は丸く，中肋に対してほぼ直角に分岐する側脈が密に並んで特徴的である。葉，枝とも傷つけると白汁を分泌し，有毒である。夏，枝端に円錐花序をなして，黄白色，星形の小さな合弁花を多数つける。果実は2個の楕円体の分果が向き合ってつき，熟すと鮮かな黄色になる。

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