Lactuca muralis (L.) Gaertn., Fruct. Sem. Pl.: t. 158. 1791 Lactuca muralis (L.) Gaertn., Fruct. Sem. Pl.: t. 158. 1791is new combination for Prenanthes muralis L., Sp. Pl.: 797. 1753Taxon for this nameLactuca muralis (L.) Gaertn., Fruct. Sem. Pl.: t. 158. 1791