1. 米国南部産のつる性木本で、反り返った皮のような萼を持つ紫または青の花が咲く(woody vine of the southern United States having purple or blue flowers with leathery recurved sepals)
2. 米国南東部産の攀縁性の亜低木で、反り返った皮のような萼を持つ大きな赤紫色の形の美しい花が咲く(scandent subshrub of southeastern United States having large red-purple bell-shaped flowers with leathery recurved sepals)