Pear
Pyrus L. [Rosaceae]
Semi-native to Japan
Pyrus pyrifolia (Burm. fil.) Nakai, s.l. (ニホンナシ / ヤマナシ): endemic to Japan
- var. culta (Makino) Nakai, s.s.
Pyrus ussuriensis Maxim. (チュウゴクナシ / ホクシヤマナシ)
Pyrus ussuriensis var. aromatica (Kikuchi et Nakai) Rehder (ミチノクナシ) [discarded, and merge with P. ussuriensis]
Pyrus ussuriensis var. hondoensis (Nakai et Kikuchi) Rehder (アオナシ)
Many cultivars
Pyrus L.
Origin: China (ca 30 spp.)
P. amygdaliformis Vill. (Almond pear): Europe - West Asia
P. betulifolia Bunge (Birch-leaved pear): northern China
P. bretschneideri Rehder: cultivars mainly in China
P. calleryana Decne. (Callery pear)
P. nivalis Jacq. (Snow pear)
P. pashia Buch.-Ham. ex D. don. (Himalayan Pear): around the Himalayas
P. pyraster (L.) Burgsd. (Wild Pear)
P. pyrifolia (Burm. fil.) Nakai (Japanese pear)
P. salicifolia Pall. (Willow-leaved pear)
P. ussuriensis Maxim. (Ussurian Pear / Chinese Pear)
Pyrus ussuriensis in Hokkaido
Transplants (perhaps cv. Senryo)in the campus of Hokkaido University of Education at Hakodate on September 24 2009.
References
- Field training on integrated environmental research 統合環境調査法実習 [fauna and flora 出現種リスト]