Galium densiflorum SynonymySource: Marhold, K. (2011+): Rubiaceae (pro parte majore). – In: Euro+Med Plantbase - the information resource for Euro-Mediterranean plant diversity.Galium densiflorum Ledeb., Fl. Altaic. 1: 137. 1829ContentDistribution Bibliography Distribution Rf(N) Euro+Med: Russia (N European Russia nativeA,B) Bibliography A. Fedorov, A. A. 1978: Flora Partis europaeae URSS 3. – Leningrad B. Jurcev, B. A. 1987: Flora arctica URSS 10. – Leningrad