| Cupressus arizonica Greene | | a | | Cupressus arizonicaGreene | |
| Cupressus arizonica Greene var. glabra (Sudw.) Little | | a | i | Cupressus arizonicaGreene var.glabra (Sudw.) Little | |
| Cupressus benthamii Endl. | Cupressus lusitanica Mill. var. benthamii (Endl.) Carrière | | | Cupressus benthamiiEndl. | Cupressus lusitanicaMill. var.benthamii (Endl.) Carrière |
| Cupressus benthamii Endl. var. knightiana (L. M. Perry ex Gordon) Mast. | Cupressus lusitanica Mill. var. benthamii (Endl.) Carrière | | i | Cupressus benthamiiEndl. var.knightiana (L. M. Perry ex Gordon) Mast. | Cupressus lusitanicaMill. var.benthamii (Endl.) Carrière |
| Cupressus benthamii Endl. var. lindleyi (Klotzsch ex Endl.) Mast. | Cupressus lusitanica Mill. var. lusitanica | | i | Cupressus benthamiiEndl. var.lindleyi (Klotzsch ex Endl.) Mast. | Cupressus lusitanicaMill. var.lusitanica |
| Cupressus cashmeriana Carrière | | a | | Cupressus cashmerianaCarrière | |
| Cupressus disticha L. var. nutans Aiton | Taxodium distichum (L.) Rich. var. distichum | | i | Cupressus distichaL. var.nutans Aiton | Taxodium distichum(L.) Rich. var.distichum |
| Cupressus disticha L. | Taxodium distichum (L.) Rich. var. distichum | | | Cupressus distichaL. | Taxodium distichum(L.) Rich. var.distichum |
| Cupressus duclouxiana Hickel | | a | | Cupressus duclouxianaHickel | |
| Cupressus dupreziana A. Camus | Cupressus sempervirens L. var. dupreziana (A. Camus) Silba | | | Cupressus duprezianaA. Camus | Cupressus sempervirensL. var.dupreziana (A. Camus) Silba |
| Cupressus forbesii Jeps. | Cupressus guadalupensis S. Watson var. forbesii (Jeps.) Little | | | Cupressus forbesiiJeps. | Cupressus guadalupensisS. Watson var.forbesii (Jeps.) Little |
| Cupressus funebris Endl. | | a | | Cupressus funebrisEndl. | |
| Cupressus glabra Sudw. | Cupressus arizonica Greene var. glabra (Sudw.) Little | | | Cupressus glabraSudw. | Cupressus arizonicaGreene var.glabra (Sudw.) Little |
| Cupressus hodginsii Dunn | Fokienia hodginsii (Dunn) A. Henry & H. H. Thomas | | | Cupressus hodginsiiDunn | Fokienia hodginsii(Dunn) A. Henry & H. H. Thomas |
| Cupressus japonica L. f. | Cryptomeria japonica (L. f.) D. Don var. japonica | | | Cupressus japonicaL. f. | Cryptomeria japonica(L. f.) D. Don var.japonica |
| Cupressus juniperoides auct. | Widdringtonia cedarbergensis J. A. Marsh | | | Cupressus juniperoidesauct. | Widdringtonia cedarbergensisJ. A. Marsh |
| Cupressus knightiana L. M. Perry ex Gordon | Cupressus lusitanica Mill. var. benthamii (Endl.) Carrière | | | Cupressus knightianaL. M. Perry ex Gordon | Cupressus lusitanicaMill. var.benthamii (Endl.) Carrière |
| Cupressus lawsoniana A. Murray bis | Chamaecyparis lawsoniana (A. Murray bis) Parl. | | | Cupressus lawsonianaA. Murray bis | Chamaecyparis lawsoniana(A. Murray bis) Parl. |
| Cupressus lindleyi Klotzsch ex Endl. | Cupressus lusitanica Mill. var. lusitanica | | | Cupressus lindleyiKlotzsch ex Endl. | Cupressus lusitanicaMill. var.lusitanica |
| Cupressus lusitanica Mill. | | a | | Cupressus lusitanicaMill. | |
| Cupressus macrocarpa Hartw. | | a | | Cupressus macrocarpaHartw. | |
| Cupressus macrocarpa Hartw. f. lutea (G. L. Webster) Rehder | Cupressus macrocarpa Hartw. | | i | Cupressus macrocarpaHartw. f. lutea (G. L. Webster) Rehder | Cupressus macrocarpaHartw. |
| Cupressus macrocarpa Hartw. f. pygmaea A. B. Jacks. | Cupressus macrocarpa Hartw. | | i | Cupressus macrocarpaHartw. f. pygmaea A. B. Jacks. | Cupressus macrocarpaHartw. |
| Cupressus nootkatensis D. Don | | a | | Cupressus nootkatensisD. Don | |
| Cupressus obtusa K. Koch | Chamaecyparis obtusa (Siebold & Zucc.) Endl. var. obtusa | | | Cupressus obtusaK. Koch | Chamaecyparis obtusa(Siebold & Zucc.) Endl. var.obtusa |
| Cupressus sempervirens L. | | a | | Cupressus sempervirensL. | |
| Cupressus sempervirens L. var. horizontalis (Mill.) G. Don, nom. nud. | Cupressus sempervirens L. | | i | Cupressus sempervirensL. var.horizontalis (Mill.) G. Don, nom. nud. | Cupressus sempervirensL. |
| Cupressus sempervirens L. var. stricta Aiton | Cupressus sempervirens L. | | i | Cupressus sempervirensL. var.stricta Aiton | Cupressus sempervirensL. |
| Cupressus thurifera Kunth | Juniperus poblana (Martínez) R. P. Adams | | | Cupressus thuriferaKunth | Juniperus poblana(Martínez) R. P. Adams |
| Cupressus torulosa D. Don | | a | | Cupressus torulosaD. Don | |
| Cupressus spp. | | a | | Cupressus spp. | |
| Cupressus goveniana Gordon | | a | | Cupressus govenianaGordon | |
| Cupressus goveniana Gordon var. abramsiana (C. B. Wolf) Little | Cupressus abramsiana C. B. Wolf | | i | Cupressus govenianaGordon var.abramsiana (C. B. Wolf) Little | Cupressus abramsianaC. B. Wolf |
| Cupressus abramsiana C. B. Wolf | | a | | Cupressus abramsianaC. B. Wolf | |
| Cupressus guadalupensis S. Watson | | a | | Cupressus guadalupensisS. Watson | |
| Cupressus arizonica Greene var. stephensonii (C. B. Wolf) Little | | a | i | Cupressus arizonicaGreene var.stephensonii (C. B. Wolf) Little | |
| Cupressus stephensonii C. B. Wolf | Cupressus arizonica Greene var. stephensonii (C. B. Wolf) Little | | | Cupressus stephensoniiC. B. Wolf | Cupressus arizonicaGreene var.stephensonii (C. B. Wolf) Little |
| Cupressus sempervirens L. var. atlantica (Gaussen) Silba | | a | i | Cupressus sempervirensL. var.atlantica (Gaussen) Silba | |
| Cupressus atlantica Gaussen | Cupressus sempervirens L. var. atlantica (Gaussen) Silba | | | Cupressus atlanticaGaussen | Cupressus sempervirensL. var.atlantica (Gaussen) Silba |
| Cupressus guadalupensis S. Watson var. forbesii (Jeps.) Little | | a | i | Cupressus guadalupensisS. Watson var.forbesii (Jeps.) Little | |
| Cupressus guadalupensis S. Watson subsp. forbesii (Jeps.) R. M. Beauch. | Cupressus guadalupensis S. Watson var. forbesii (Jeps.) Little | | i | Cupressus guadalupensisS. Watson subsp. forbesii (Jeps.) R. M. Beauch. | Cupressus guadalupensisS. Watson var.forbesii (Jeps.) Little |
| Cupressus lusitanica Mill. var. lusitanica | | a | i | Cupressus lusitanicaMill. var.lusitanica | |
| Cupressus lusitanica Mill. var. benthamii (Endl.) Carrière | | a | i | Cupressus lusitanicaMill. var.benthamii (Endl.) Carrière | |
| Cupressus ×leylandii A. B. Jacks. & Dallim. | | a | | Cupressus leylandiiA. B. Jacks. & Dallim. | |
| Cupressus sempervirens L. var. dupreziana (A. Camus) Silba | | a | i | Cupressus sempervirensL. var.dupreziana (A. Camus) Silba | |
| Cupressus torulosa D. Don var. corneyana Carrière | Cupressus torulosa D. Don | | i | Cupressus torulosaD. Don var.corneyana Carrière | Cupressus torulosaD. Don |
| Cupressus macnabiana A. Murray bis | | a | | Cupressus macnabianaA. Murray bis | |
| Cupressus sargentii Jeps. | | a | | Cupressus sargentiiJeps. | |
| Cupressus goveniana Gordon var. goveniana | Cupressus goveniana Gordon | | i | Cupressus govenianaGordon var.goveniana | Cupressus govenianaGordon |
| Cupressus goveniana Gordon subsp. abramsiana (C. B. Wolf) A. E. Murray | Cupressus abramsiana C. B. Wolf | | i | Cupressus govenianaGordon subsp. abramsiana (C. B. Wolf) A. E. Murray | Cupressus abramsianaC. B. Wolf |
| Cupressus arizonica Greene var. arizonica | | a | i | Cupressus arizonicaGreene var.arizonica | |
| Cupressus arizonica Greene var. bonita Lemmon | Cupressus arizonica Greene | | i | Cupressus arizonicaGreene var.bonita Lemmon | Cupressus arizonicaGreene |
| Cupressus nevadensis Abrams | Cupressus arizonica Greene var. nevadensis (Abrams) Little | | | Cupressus nevadensisAbrams | Cupressus arizonicaGreene var.nevadensis (Abrams) Little |
| Cupressus macnabiana A. Murray bis var. nevadensis (Abrams) Abrams | Cupressus arizonica Greene var. nevadensis (Abrams) Little | | i | Cupressus macnabianaA. Murray bis var.nevadensis (Abrams) Abrams | Cupressus arizonicaGreene var.nevadensis (Abrams) Little |
| Cupressus bakeri Jeps. | | a | | Cupressus bakeriJeps. | |
| Cupressus macnabiana A. Murray bis var. bakeri (Jeps.) Jeps. | Cupressus bakeri Jeps. | | i | Cupressus macnabianaA. Murray bis var.bakeri (Jeps.) Jeps. | Cupressus bakeriJeps. |
| Cupressus thyoides L. | Chamaecyparis thyoides (L.) Britton et al. var. thyoides | | | Cupressus thyoidesL. | Chamaecyparis thyoides(L.) Britton et al. var.thyoides |
| Cupressus goveniana Gordon subsp. pigmaea (Lemmon) A. Camus | Cupressus pigmaea (Lemmon) Sarg. | | i | Cupressus govenianaGordon subsp. pigmaea (Lemmon) A. Camus | Cupressus pigmaea(Lemmon) Sarg. |
| Cupressus columnaris G. Forst. | Araucaria columnaris (G. Forst.) Hook. | | | Cupressus columnarisG. Forst. | Araucaria columnaris(G. Forst.) Hook. |
| Cupressus guadalupensis S. Watson var. guadalupensis | | a | i | Cupressus guadalupensisS. Watson var.guadalupensis | |
| Cupressus pigmaea (Lemmon) Sarg. | | a | | Cupressus pigmaea(Lemmon) Sarg. | |
| Cupressus goveniana Gordon var. pigmaea Lemmon | Cupressus pigmaea (Lemmon) Sarg. | | i | Cupressus govenianaGordon var.pigmaea Lemmon | Cupressus pigmaea(Lemmon) Sarg. |
| Cupressus chengiana S. Y. Hu | | a | | Cupressus chengianaS. Y. Hu | |
| Cupressus chengiana S. Y. Hu var. chengiana | | a | i | Cupressus chengianaS. Y. Hu var.chengiana | |
| Cupressus torulosa D. Don var. torulosa | | a | i | Cupressus torulosaD. Don var.torulosa | |
| Cupressus gigantea W. C. Cheng & L. K. Fu | Cupressus torulosa D. Don var. gigantea (W. C. Cheng & L. K. Fu) Farjon | | | Cupressus giganteaW. C. Cheng & L. K. Fu | Cupressus torulosaD. Don var.gigantea (W. C. Cheng & L. K. Fu) Farjon |
| Cupressus torulosa D. Don var. gigantea (W. C. Cheng & L. K. Fu) Farjon | | a | i | Cupressus torulosaD. Don var.gigantea (W. C. Cheng & L. K. Fu) Farjon | |
| Cupressus arizonica Greene var. nevadensis (Abrams) Little | | a | i | Cupressus arizonicaGreene var.nevadensis (Abrams) Little | |
| Cupressus arizonica Greene var. montana (Wiggins) Little | | a | i | Cupressus arizonicaGreene var.montana (Wiggins) Little | |
| Cupressus montana Wiggins | Cupressus arizonica Greene var. montana (Wiggins) Little | | | Cupressus montanaWiggins | Cupressus arizonicaGreene var.montana (Wiggins) Little |
| Cupressus chengiana S. Y. Hu var. jiangensis (N. Zhao) Silba | | a | i | Cupressus chengianaS. Y. Hu var.jiangensis (N. Zhao) Silba | |
| Cupressus jiangensis N. Zhao | Cupressus chengiana S. Y. Hu var. jiangensis (N. Zhao) Silba | | | Cupressus jiangensisN. Zhao | Cupressus chengianaS. Y. Hu var.jiangensis (N. Zhao) Silba |
| Cupressus horizontalis Mill. | Cupressus sempervirens L. | | | Cupressus horizontalisMill. | Cupressus sempervirensL. |
| Cupressus himalaica Silba | Cupressus cashmeriana Carrière | | | Cupressus himalaicaSilba | Cupressus cashmerianaCarrière |
| Cupressus vietnamensis (Farjon & Hiep) Silba | | a | | Cupressus vietnamensis(Farjon & Hiep) Silba | |
| Cupressus abramsiana C. B. Wolf subsp. abramsiana | | a | i | Cupressus abramsianaC. B. Wolf subsp. abramsiana | |
| Cupressus abramsiana C. B. Wolf subsp. butanoensis Silba | | a | i | Cupressus abramsianaC. B. Wolf subsp. butanoensis Silba | |
| Cupressus arizonica Greene var. revealiana Silba | | a | i | Cupressus arizonicaGreene var.revealiana Silba | |
| Cupressus revealiana (Silba) Bisbee | Cupressus arizonica Greene var. revealiana Silba | | | Cupressus revealiana(Silba) Bisbee | Cupressus arizonicaGreene var.revealiana Silba |
| Cupressus goveniana Gordon subsp. goveniana | Cupressus goveniana Gordon | | i | Cupressus govenianaGordon subsp. goveniana | Cupressus govenianaGordon |
| Cupressus benthamii Endl. var. benthamii | Cupressus lusitanica Mill. var. benthamii (Endl.) Carrière | | i | Cupressus benthamiiEndl. var.benthamii | Cupressus lusitanicaMill. var.benthamii (Endl.) Carrière |
| Cupressus disticha L. var. disticha | Taxodium distichum (L.) Rich. var. distichum | | i | Cupressus distichaL. var.disticha | Taxodium distichum(L.) Rich. var.distichum |
| Cupressus guadalupensis S. Watson subsp. guadalupensis | Cupressus guadalupensis S. Watson var. guadalupensis | | i | Cupressus guadalupensisS. Watson subsp. guadalupensis | Cupressus guadalupensisS. Watson var.guadalupensis |
| Cupressus macnabiana A. Murray bis var. macnabiana | Cupressus macnabiana A. Murray bis | | i | Cupressus macnabianaA. Murray bis var.macnabiana | Cupressus macnabianaA. Murray bis |
| Cupressus macrocarpa Hartw. f. macrocarpa | Cupressus macrocarpa Hartw. | | i | Cupressus macrocarpaHartw. f. macrocarpa | Cupressus macrocarpaHartw. |
| Cupressus sempervirens L. var. sempervirens | | a | i | Cupressus sempervirensL. var.sempervirens | |