moonseed

...A deciduous woody creeper of the Menispermaceae family common in mountainous areas (illustration). Dioecious. Entire plant is glabrous. The leaves are alternate, kidney-shaped, with 3-7 shallow lobes, and slightly whitish underside. The leaves are vertical. The name bat vine comes from the resemblance of the leaves to a bat. In May and June, numerous flowers are produced in panicles. There are 6 sepals and 9-10 petals arranged in a spiral. The male flowers have 20 stamens and 4-lobed anthers. The female flowers have 3-4 pistils. The drupes are kidney-shaped and ripen to a dark purple color. They are widely distributed in Hokkaido, Honshu, Shikoku, and Kyushu. ...

*Some of the terminology that mentions "moonseed" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…山地に普通なツヅラフジ科の落葉つる性木本（イラスト）。雌雄異株。全体無毛。葉は互生，腎円形で3～7浅裂し，下面やや白色をおびる。葉は縦状。葉の形がコウモリに似ているところから，コウモリカズラの名がある。5～6月，円錐花序に多数の花をつける。萼片6枚，花弁9～10枚でらせん状に配列。雄花ではおしべ20本，葯は4裂する。雌花ではめしべ3～4本。核果は腎臓形で黒紫色に熟す。北海道，本州，四国，九州と広く分布する。…

※「moonseed」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報