Source: Domina, G. & Raab-Straube, E. von (2010+): Orobanche. – In: Euro+Med Plantbase - the information resource for Euro-Mediterranean plant diversity.
Euro+Medendemic: Azerbaijan (Azerbaijan (core)nativeA,B); GeorgianativeA; Russia (North CaucasusnativeA,C); Turkey (Turkey, Asiatic partnativeA)
Bibliography
A.Piwowarczyk, R. & Tatanov, I. 2014: Orobanche laxissima Uhlich & Rätzel (Orobanchaceae) - a new species for Dagestan (Russia) and Azerbaijan. – Biodiv. Res. Conserv. 32: 25-28
B.Raab-Straube, E. von & Raus, Th. (ed.) 2013: Euro+Med-Checklist Notulae, 2. – Willdenowia 43: 239-249
C.Rätzel, S. & Uhlich, H. 2004: Orobanche benkertii sp. nova (Orobanchaceae Vent.) und weitere Orobanche-Sippen aus dem Nordwest-Kaukasus. – Feddes Repertorium 115: 189-211