Steptorhamphus petraeus (DC.) Grossh., Fl. Kavk. 4: 258. 1934
Steptorhamphus petraeus, Fl. Kavk. 4: 258. 1934
is new combination for Lactuca petraea, Prodr. 7: 134. 1838
Steptorhamphus petraeus, Fl. Kavk. 4: 258. 1934
Steptorhamphus petraeus, Fl. Kavk. 4: 258. 1934
Taxon for this name