ˈɛmlˈɑːkoʊswˌɪtʃɪˌaɪ wʌz fˈɜːst dᵻskɹˈaɪbd æz ɐ spˈiːsiːz, piːˈoʊniə ˈɛmlˈɑːkoʊswˌɪtʃɪˌaɪ, baɪ ɐlˈɛksændɚ lˈɑːmɐkˌɪn ɪn wˈʌn θˈaʊzənd ˈeɪthˈʌndɹɪd nˈaɪnti sˈɛvən.
mlokosewitschii was first described as a species, Paeonia mlokosewitchii, by Aleksandr Lomakin in 1897.