Fl. Berol. Prodr.: 347 (1787).

Basionym: Lichen caninus L., Sp. pl. 2: 1149 (1753).

Chemistry: Linoleic acid (Solberg 1975 b, Huneck & Yoshimura 1996: 147). Sativic acid = 9,10,12,13-tetrahydroxystearic acid (Huneck & Yoshimura 1996: 154).