1 : Ceropegia botrys K.Schumann, distribution : N.Yemen, SW.Arabia
2 : Ceropegia variegata Decne. var. adelaidae (Bally) Cufodontis, distribution : Yemen, Arabia
3 & 7: Ceropegia variegata Decne., distribution : Yemen, SW.Arabia
4 : Ceropegia vignaldiana A.Rich, distribution : SW.Arabia, very rare
5 : Ceropegia superba Field & Collentte, distribution : SW.Arabia
6 & 14: Ceropegia arabica Huber, distribution : SW.Arabia (Jabal Fayfa)
8 & 12 : Ceropegia aristolochioides Decne. subsp. deflersiana Bruyns, distribution : SW.Arabia (Wadi Jowah Amra)
9 & 11: Ceropegia arabica Huber var. abbreviata Bruyns, distribution : SW.Arabia (Tihama)
10 : Ceropegia tihamana Chaudhary & Lavranos, distribution : SW.Arabia (Tihama)
13 : Ceropegia bulbosa Roxb., distribution : SW.Arabia (Hakima, Muhayl), Yemen, Oman, India