Convolvulus undulatus Cav.

POWO follows these authorities in synonymising this name:

• Boulos, L. (2000). Flora of Egypt 2: 1-352. Al Hadara Publishing, Cairo. [Cited as Convolvulus humilis.]
• Dobignard, A. & C. Chatelain in Dobignard, A. & Chatelain, C. (2011). Convolvulaceae. Index synonymique de la flore d'Afrique du nord 3: 331-351. Conservatoire et Jardin Botanique de la ville de Genève. [Cited as Convolvulus humilis.]
• Govaerts, R. (1999). World Checklist of Seed Plants 3(1, 2a & 2b): 1-1532. MIM, Deurne. [Cited as Convolvulus humilis.]
• Greuter, W., Burdet, H.M., & Long, G. (1986). Med-checklist 3: Dicotyledones (Convolvulaceae - Labiatae) 3: 1-395. Conservatoire et Jardin botaniques, Ville de Genève. [Cited as Convolvulus humilis.]
• Meikle, R.D. (1985). Flora Cyprus CNV. Flora of Cyprus 2: 1166-1179. The Bentham-Moxon Trust Royal Botanic Gardens, Kew. [Cited as Convolvulus humilis.]
• Sa'ad, F. (1967). The Convolvulus species of the Canary Islands, the Mediterranean region and the Near and Middle East. Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht 281: 1-288. [Cited as Convolvulus humilis.]
• Sa'ad, F. (1967). The Convolvulus species of the Canary Isles, the Mediterranean region, and the Near and Middle East.. Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht 281: 1-288. [Cited as Convolvulus humilis.]
• Siddiqi, M.A. in Jafri, S.M.H. & El-Gadi, A. (eds.) (1977). Convolvulaceae. Flora of Libya 45: 1-27. Al-Faateh University, Tripoli. [Cited as Convolvulus humilis.]
• Valentine, D.H. et al. in Tutin, T.G. & al. (eds.) (1972). Convolvulaceae. Flora Europaea 3: 74-83. Cambridge University Press. [Cited as Convolvulus humilis.]