つるもうりんか (蔓茉莉花) [Index] [Back] わが国の九州南部から南西諸島に分布しています。海岸の崖地や草地などに生え、蔓性で長さは３０〜１５０センチになります。若枝には短毛があります。葉は卵状楕円形から長楕円形で対生します。５月から９月ごろ、茎頂や葉腋から集散花序をだし、淡黄色の花をいっぱい咲かせます。花冠の中心部は帯紫色、縁は５深裂して、星形となります。果実はＶ字形の細長い�刮ﾊです。本種は、アサギマダラの食草として有名です。和名の「もうりんか」は「まつりか（茉莉花）」のことです。 ガガイモ科オオカモメヅル属の常緑多年草で、学名は Tylophora tanakae (syn. Vincetoxicum tanakae)。英名はありません。 The "Tsuru-mourinka" (Tylophora tanakae) belongs to Asclepiadaceae (the Milkweed family). It is an evergreen perennial herb that is distributed from southern Kyushu to the Nansei Islands in Japan. It grows on coastal cliffs and grasslands, and is a vine that reaches 30 to 150 cm in length. Young branches are covered with short hairs. The leaves are ovate-elliptical to oblong and arranged in opposite pairs. From around May to September, it produces corymbs from the stem tips and leaf axils, blooming profusely with pale yellow flowers. The center of the corolla is purplish, and the margins are deeply lobed into five parts, forming a star shape. The fruit is a slender, V-shaped capsule. This species is well known as a food plant for the Chestnut tiger (Parantica sita). The Japanese name "mourinka" refers to "matsurika" (Jasmine). 茨城県つくば市「つくば実験植物園」にて、2026年03月28日撮影。 Shu Suehiro shu@botanic.jp