介紹
組2. 脫萼組
本組有下列6種。
下級分類
杜梨Pyrus betulifolia Bunge
白梨Pyrus bretschneideri Rehder
豆梨Pyrus calleryana Decne.
豆梨絨毛變型Pyrus calleryana Decne. form. tomentella Rehder
豆梨（原變種）Pyrus calleryana Decne. var. calleryana
豆梨全緣葉變種Pyrus calleryana Decne. var. integrifolia T. T. Yu
豆梨楔葉變種Pyrus calleryana Decne. var. koehnei (C. K. Schneid.) T. T. Yu
豆梨柳葉變種Pyrus calleryana Decne. var. lanceata Rehder
川梨Pyrus pashia Buch.-Ham. ex D. Don
川梨大花變種Pyrus pashia Buch.-Ham. ex D. Don var. grandiflora Cardot
川梨無毛變種Pyrus pashia Buch.-Ham. ex D. Don var. kumaoni Stapf
川梨鈍葉變種Pyrus pashia Buch.-Ham. ex D. Don var. obtusata Cardot
川梨（原變種）Pyrus pashia Buch.-Ham. ex D. Don var. pashia
褐梨Pyrus phaeocarpa Rehder
沙梨Pyrus pyrifolia (Burm.f.) Nakai
1.杜梨Pyrus betulifolia Bunge
2.白梨Pyrus bretschneideri Rehder
3.豆梨Pyrus calleryana Decne.
豆梨絨毛變型Pyrus calleryana Decne. form. tomentella Rehder
豆梨（原變種）Pyrus calleryana Decne. var. calleryana
豆梨全緣葉變種Pyrus calleryana Decne. var. integrifolia T. T. Yu
豆梨楔葉變種Pyrus calleryana Decne. var. koehnei (C. K. Schneid.) T. T. Yu
豆梨柳葉變種Pyrus calleryana Decne. var. lanceata Rehder
4.川梨Pyrus pashia Buch.-Ham. ex D. Don
川梨大花變種Pyrus pashia Buch.-Ham. ex D. Don var. grandiflora Cardot
川梨無毛變種Pyrus pashia Buch.-Ham. ex D. Don var. kumaoni Stapf
川梨鈍葉變種Pyrus pashia Buch.-Ham. ex D. Don var. obtusata Cardot
川梨（原變種）Pyrus pashia Buch.-Ham. ex D. Don var. pashia
5.褐梨Pyrus phaeocarpa Rehder
6.沙梨Pyrus pyrifolia (Burm.f.) Nakai
