Apocynaceae

Periwinkle, climbing periwinkle, and dwarf periwinkle all belong to the Apocynaceae family and are cultivated in Japan for ornamental purposes, frequently seen even in urban areas. They are popular for their interesting features, such as their fused petals with five propeller-shaped lobes at the tip, but their names are similar, especially the climbing periwinkle...

キョウチクトウは公園での植え込みや街路樹など日本国内で様々な地点で見かける園芸樹木ですが、元々は地中海から東南アジアに分布しており、諸説ありますが、葉5～15枚が致死量と言われ、国内でも極稀ですが、中毒の報告があります。また燃やした煙にも毒...

Trachelospermum asiaticum and Trachelospermum asiaticum are climbing plants that can be widely found in Japan, from forests to urban areas, including cultivated varieties. They can be distinguished by the hairs on the underside of their leaves and the length of their flower tubes. They have been widely known in Japan since the time of the writing of the Kojiki, and their current names are derived from "fuji" (wisteria)...