| Pyrus amygdaliformis Vill. var. sinaica Koehne | Pyrus spinosa Forssk. | | i | Pyrus amygdaliformisVill. var.sinaica Koehne | Pyrus spinosaForssk. |
| Pyrus boissieriana Buhse | | a | | Pyrus boissierianaBuhse | |
| Pyrus ×canescens Spach | | a | | Pyrus canescensSpach | |
| Pyrus communis L. | | a | | Pyrus communisL. | |
| Pyrus communis L. var. cordata (Desv.) Hook. f. | Pyrus cordata Desv. | | i | Pyrus communisL. var.cordata (Desv.) Hook. f. | Pyrus cordataDesv. |
| Pyrus communis L. var. pyraster L. | Pyrus communis L. subsp. pyraster (L.) Ehrh. | | i | Pyrus communisL. var.pyraster L. | Pyrus communisL. subsp. pyraster (L.) Ehrh. |
| Pyrus ×complexa Rubtzov | | a | | Pyrus complexaRubtzov | |
| Pyrus cordata Desv. | | a | | Pyrus cordataDesv. | |
| Pyrus elaeagrifolia Pall. | | a | | Pyrus elaeagrifoliaPall. | |
| Pyrus elaeagrifolia Pall. var. kotschyana (Boiss. ex Decne.) Boiss. | Pyrus elaeagrifolia Pall. subsp. kotschyana (Boiss. ex Decne.) Browicz | | i | Pyrus elaeagrifoliaPall. var.kotschyana (Boiss. ex Decne.) Boiss. | Pyrus elaeagrifoliaPall. subsp. kotschyana (Boiss. ex Decne.) Browicz |
| Pyrus gharbiana Trab. | | a | | Pyrus gharbianaTrab. | |
| Pyrus heterophylla Regel & Schmalh. | Pyrus regelii Rehder | | | Pyrus heterophyllaRegel & Schmalh. | Pyrus regeliiRehder |
| Pyrus korshinskyi Litv. | | a | | Pyrus korshinskyiLitv. | |
| Pyrus kotschyana Boiss. ex Decne. | Pyrus elaeagrifolia Pall. subsp. kotschyana (Boiss. ex Decne.) Browicz | | | Pyrus kotschyanaBoiss. ex Decne. | Pyrus elaeagrifoliaPall. subsp. kotschyana (Boiss. ex Decne.) Browicz |
| Pyrus mamorensis Trab. | | a | | Pyrus mamorensisTrab. | |
| Pyrus ×michauxii Bosc ex Poir. | | a | | Pyrus michauxiiBosc ex Poir. | |
| Pyrus ×nivalis Jacq. | | a | | Pyrus nivalisJacq. | |
| Pyrus ×nivalis Jacq. var. elaeagrifolia (Pall.) C. K. Schneid. | Pyrus elaeagrifolia Pall. subsp. elaeagrifolia | | i | Pyrus nivalisJacq. var.elaeagrifolia (Pall.) C. K. Schneid. | Pyrus elaeagrifoliaPall. subsp. elaeagrifolia |
| Pyrus ×nivalis Jacq. var. kotschyana (Boiss. ex Decne.) C. K. Schneid. | Pyrus elaeagrifolia Pall. subsp. kotschyana (Boiss. ex Decne.) Browicz | | i | Pyrus nivalisJacq. var.kotschyana (Boiss. ex Decne.) C. K. Schneid. | Pyrus elaeagrifoliaPall. subsp. kotschyana (Boiss. ex Decne.) Browicz |
| Pyrus oblongifolia Spach | Pyrus spinosa Forssk. | | | Pyrus oblongifoliaSpach | Pyrus spinosaForssk. |
| Pyrus persica Pers. | Pyrus spinosa Forssk. | | | Pyrus persicaPers. | Pyrus spinosaForssk. |
| Pyrus regelii Rehder | | a | | Pyrus regeliiRehder | |
| Pyrus salicifolia Pall. | | a | | Pyrus salicifoliaPall. | |
| Pyrus salviifolia DC. | Pyrus ×nivalis Jacq. | | | Pyrus salviifoliaDC. | Pyrus nivalisJacq. |
| Pyrus sinai Desf. | Pyrus spinosa Forssk. | | | Pyrus sinaiDesf. | Pyrus spinosaForssk. |
| Pyrus sinaica Dum. Cours. | Pyrus spinosa Forssk. | | | Pyrus sinaicaDum. Cours. | Pyrus spinosaForssk. |
| Pyrus sinaica Thouin | Pyrus spinosa Forssk. | | | Pyrus sinaicaThouin | Pyrus spinosaForssk. |
| Pyrus syriaca Boiss. | | a | | Pyrus syriacaBoiss. | |
| Pyrus amygdaliformis Vill. | Pyrus spinosa Forssk. | | | Pyrus amygdaliformisVill. | Pyrus spinosaForssk. |
| Pyrus glabra Boiss. | | a | | Pyrus glabraBoiss. | |
| Pyrus spinosa Forssk. var. oblongifolia (Spach) Dostalek | Pyrus spinosa Forssk. | | i | Pyrus spinosaForssk. var.oblongifolia (Spach) Dostalek | Pyrus spinosaForssk. |
| Pyrus elaeagrifolia Pall. subsp. kotschyana (Boiss. ex Decne.) Browicz | | a | i | Pyrus elaeagrifoliaPall. subsp. kotschyana (Boiss. ex Decne.) Browicz | |
| Pyrus asiae-mediae (Popov) Maleev | Pyrus communis L. | | | Pyrus asiae-mediae(Popov) Maleev | Pyrus communisL. |
| Pyrus balansae Decne. | Pyrus communis L. | | | Pyrus balansaeDecne. | Pyrus communisL. |
| Pyrus pyraster (L.) Burgsd. | Pyrus communis L. subsp. pyraster (L.) Ehrh. | | | Pyrus pyraster(L.) Burgsd. | Pyrus communisL. subsp. pyraster (L.) Ehrh. |
| Pyrus communis L. subsp. caucasica (Fed.) Browicz | | a | i | Pyrus communisL. subsp. caucasica (Fed.) Browicz | |
| Pyrus caucasica Fed. | Pyrus communis L. subsp. caucasica (Fed.) Browicz | | | Pyrus caucasicaFed. | Pyrus communisL. subsp. caucasica (Fed.) Browicz |
| Pyrus elata Rubtzov | Pyrus communis L. | | | Pyrus elataRubtzov | Pyrus communisL. |
| Pyrus medvedevii Rubtzov | Pyrus communis L. | | | Pyrus medvedeviiRubtzov | Pyrus communisL. |
| Pyrus korshinskyi Litv. subsp. bucharica (Litv.) Bondarenko ex Korovina | | a | i | Pyrus korshinskyiLitv. subsp. bucharica (Litv.) Bondarenko ex Korovina | |
| Pyrus bucharica Litv. | Pyrus korshinskyi Litv. subsp. bucharica (Litv.) Bondarenko ex Korovina | | | Pyrus bucharicaLitv. | Pyrus korshinskyiLitv. subsp. bucharica (Litv.) Bondarenko ex Korovina |
| Pyrus cuneifolia Guss. | Pyrus spinosa Forssk. | | | Pyrus cuneifoliaGuss. | Pyrus spinosaForssk. |
| Pyrus amygdaliformis Vill. var. cuneifolia (Guss.) Bean | Pyrus spinosa Forssk. | | i | Pyrus amygdaliformisVill. var.cuneifolia (Guss.) Bean | Pyrus spinosaForssk. |
| Pyrus ×nivalis Jacq. var. orientalis Terpó | Pyrus ×nivalis Jacq. | | i | Pyrus nivalisJacq. var.orientalis Terpó | Pyrus nivalisJacq. |
| Pyrus bourgaeana Decne. | Pyrus communis L. | | | Pyrus bourgaeanaDecne. | Pyrus communisL. |
| Pyrus domestica Medik. | Pyrus communis L. | | | Pyrus domesticaMedik. | Pyrus communisL. |
| Pyrus communis L. subsp. gharbiana (Trab.) Maire | Pyrus gharbiana Trab. | | i | Pyrus communisL. subsp. gharbiana (Trab.) Maire | Pyrus gharbianaTrab. |
| Pyrus communis L. subsp. marmorensis (Trab.) Maire | Pyrus mamorensis Trab. | | i | Pyrus communisL. subsp. marmorensis (Trab.) Maire | Pyrus mamorensisTrab. |
| Pyrus communis L. subsp. bourgaeana (Decne.) Nyman | Pyrus communis L. | | i | Pyrus communisL. subsp. bourgaeana (Decne.) Nyman | Pyrus communisL. |
| Pyrus communis L. subsp. pyraster (L.) Ehrh. | | a | i | Pyrus communisL. subsp. pyraster (L.) Ehrh. | |
| Pyrus spinosa Forssk. | | a | | Pyrus spinosaForssk. | |
| Pyrus communis L. var. mariana Willk. | Pyrus communis L. | | i | Pyrus communisL. var.mariana Willk. | Pyrus communisL. |
| Pyrus elaeagrifolia Pall. subsp. elaeagrifolia | | a | i | Pyrus elaeagrifoliaPall. subsp. elaeagrifolia | |
| Pyrus turcomanica Maleev | | a | | Pyrus turcomanicaMaleev | |
| Pyrus communis L. subsp. communis | | a | i | Pyrus communisL. subsp. communis | |
| Pyrus sachokiana Kuth. | | a | | Pyrus sachokianaKuth. | |
| Pyrus salicifolia Pall. f. pendula (H. Jaeger) Geerinck | Pyrus salicifolia Pall. | | i | Pyrus salicifoliaPall. f. pendula (H. Jaeger) Geerinck | Pyrus salicifoliaPall. |
| Pyrus salicifolia Pall. var. pendula H. Jaeger | Pyrus salicifolia Pall. | | i | Pyrus salicifoliaPall. var.pendula H. Jaeger | Pyrus salicifoliaPall. |
| Pyrus elaeagrifolia Pall. subsp. bulgarica (Kuth. & Sachokia) Valev | Pyrus ×nivalis Jacq. | | i | Pyrus elaeagrifoliaPall. subsp. bulgarica (Kuth. & Sachokia) Valev | Pyrus nivalisJacq. |
| Pyrus bulgarica Kuth. & Sachokia | Pyrus ×nivalis Jacq. | | | Pyrus bulgaricaKuth. & Sachokia | Pyrus nivalisJacq. |
| Pyrus ×nivalis Jacq. subsp. salviifolia (DC.) Schinz & Thell. | Pyrus ×nivalis Jacq. | | i | Pyrus nivalisJacq. subsp. salviifolia (DC.) Schinz & Thell. | Pyrus nivalisJacq. |
| Pyrus ×nivalis Jacq. var. salviifolia (DC.) Rouy & A. Camus | Pyrus ×nivalis Jacq. | | i | Pyrus nivalisJacq. var.salviifolia (DC.) Rouy & A. Camus | Pyrus nivalisJacq. |
| Pyrus salicifolia Pall. f. salicifolia | Pyrus salicifolia Pall. | | i | Pyrus salicifoliaPall. f. salicifolia | Pyrus salicifoliaPall. |
| Pyrus salicifolia Pall. var. salicifolia | Pyrus salicifolia Pall. | | i | Pyrus salicifoliaPall. var.salicifolia | Pyrus salicifoliaPall. |
| Pyrus amygdaliformis Vill. var. amygdaliformis | Pyrus spinosa Forssk. | | i | Pyrus amygdaliformisVill. var.amygdaliformis | Pyrus spinosaForssk. |
| Pyrus communis L. var. communis | Pyrus communis L. subsp. communis | | i | Pyrus communisL. var.communis | Pyrus communisL. subsp. communis |
| Pyrus elaeagrifolia Pall. var. elaeagrifolia | Pyrus elaeagrifolia Pall. subsp. elaeagrifolia | | i | Pyrus elaeagrifoliaPall. var.elaeagrifolia | Pyrus elaeagrifoliaPall. subsp. elaeagrifolia |
| Pyrus korshinskyi Litv. subsp. korshinskyi | | a | i | Pyrus korshinskyiLitv. subsp. korshinskyi | |
| Pyrus ×nivalis Jacq. var. nivalis | Pyrus ×nivalis Jacq. | | i | Pyrus nivalisJacq. var.nivalis | Pyrus nivalisJacq. |
| Pyrus ×nivalis Jacq. subsp. nivalis | Pyrus ×nivalis Jacq. | | i | Pyrus nivalisJacq. subsp. nivalis | Pyrus nivalisJacq. |
| Pyrus spinosa Forssk. var. spinosa | Pyrus spinosa Forssk. | | i | Pyrus spinosaForssk. var.spinosa | Pyrus spinosaForssk. |