black-eyed-Susan vine

...The scientific name of the genus is derived from the name of the black-eyed Susan vine. Thunbergia alata Bojer (English name: black-eyed Susan vine) (illustration) is a small climbing perennial plant that produces five-petaled flowers about 3 cm in diameter in the leaf axils. The petals are orange-yellow and the central tubular part is blackish purple, but there are also varieties with white centers and pure white petals. ...

*Some of the terminology that mentions "black-eyed-Susan vine" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…属の学名はツンベリーの名にちなむ。ヤハズカズラThunbergia alata Bojer(英名black‐eyed‐Susan vine)（イラスト）は小型のつる性多年草で，葉腋（ようえき）に径3cmほどの5弁の花をつける。花弁は橙黄色で，中心の筒状部は黒紫色となるが，中心が白色のもの，花弁まで純白の品種もある。…

※「black-eyed-Susan vine」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