Oroya Britton & Rose, The Cactaceae; descriptions and illustrations of plants of the cactus family 3: 102, 1922

Oroya acollana 

Oroya baumannii K. Knize, Biota 7 (57): 254, 1968

Oroya baumannii v. baumannii   1968

Oroya baumannii v. rubrispina K. Knize, Biota 7 (57): 254, 1968

Oroya borchersii (Boedeker) Backeberg, Rauk, Beitr. Kenntn. Peruan. Kakteenveg. (Sitz. Heidelb. Akad. Wiss., Math. -Nat., 1958, Abh. 1) 487, sine ref. (1958); Backeb. Cactac. Handb. Kakteenk. 3. (1959), 1958

Oroya borchersii f. fuscata Rauh & Backeberg, Kakteen (H. Krainz) 24: C Vb., 1958

Oroya borchersii v. aureotenuispina 

Oroya borchersii v. fuscata

Oroya gibbosa F. Ritter, Kakteen in Sudamerika 4: 1512, 1981

Oroya gibbosa v. citriflora K. Knize, Biota 7: 57, 1968

Oroya gibbosa v. gibbosa  

Oroya gigantea 

Oroya laxiareolata Rauh & Backeberg, Backeb. Descr. Cact. Nov. 32., 1958

Oroya laxiareolata albispina Mesa Garden cat. 2001 

Oroya laxiareolata v. pluricentralis Backeberg, Descr. Cact. Nov. 3: 10., 1963

Oroya minima  

Oroya neoperuviana Backeberg, Kaktus-ABC 282, 416, 1935

Oroya neoperuviana v. depressa Rauh & Backeberg, Descr. Cact. Nov. 32., 1956

Oroya neoperuviana v. ferruginea Rauh & Backeberg, Descr. Cact. Nov. 32., 1958

Oroya neoperuviana v. neoperuviana 

Oroya neoperuviana v. tenuispina Rauh & Backeberg  1958

Oroya neoperuviana v. typica Rauh & Backeberg  1958

Oroya peruviana

(K. Schumann) Britton & Rose, The Cactaceae; descriptions and illustrations of plants of the cactus family 3: 102, 1922

Oroya peruviana v. baumannii (K. Knize) Slaba, Kaktusy 21 (1): 10, 1985

Oroya peruviana v. canaikensis J.D. Donald & A. Lau, National Cactus and Succulent Journal 25 (2): 33, 1970

Oroya peruviana v. citriflora (K. Knize) Slaba, Kaktusy, cf. Repert. Pl. Succ. (I. O. S.), 21 (1): 9; 36: 8 (1985 publ. 1986): 1985

Oroya peruviana v. depressa Rauh & Backeberg, Descriptiones Cactacearum Novarum, 1956

Oroya peruviana v. minima  

Oroya peruviana v. neoperuviana (Backeberg) Slaba, Kaktusy, cf. Repert. Pl. Succ. (I. O. S.), 21 (1): 7; 36: 8 (1985 publ. 1986): 1985

Oroya peruviana v. peruviana  

Oroya peruviana v. pluricentralis (Backeberg) F. Ritter, Kakteen in Sudamerika 4: 1511, 1981

Oroya subgibbosa  

Oroya subocculta Rauh & Backeberg, Backeb. Descr. Cact. Nov. 32, 1958

Oroya subocculta v. albispina Rauh & Backeberg, Descr. Cact. Nov. 32., 1958

Oroya subocculta v. fusca Rauh & Backeberg, Descr. Cact. Nov. 32., 1958

Oroya subocculta v. laxiareolata (Rauh & Backeberg) Slaba, Kaktusy, cf. Repert. Pl. Succ. (I. O. S.), 21 (2): 34; 36: 8 (1985 publ. 1986): 1985

Oroya subocculta v. pluricentralis (Backeberg) Slaba, Kaktusy, cf. Repert. Pl. Succ. (I. O. S.), 21 (2): 34, basionym not validly publ.; 36: 8 (1985 publ. 1986): 1985

Oroya subocculta v. subocculta  

Oroya subocculta v. typica Rauh & Backeberg, Descriptiones Cactacearum Novarum, 1956