Rubia peregrina subsp. longifolia
Synonymy
Source: Marhold, K. (2011+): Rubiaceae (pro parte majore). – In: Euro+Med Plantbase - the information resource for Euro-Mediterranean plant diversity.
Rubia peregrina subsp. longifolia, V Simp. Fl. Eur., Publ. Univ. Sevilla: 84. 1969