Ostrya has the following species: •
Ostrya carpinifolia Scop. – European hop-hornbeam - Mediterranean region of southern Europe, Middle-east,
Turkey,
Lebanon, Caucasus •
Ostrya chisosensis Correll – Chisos hophornbeam, Big Bend hophornbeam - endemic to
Big Bend National Park in Texas •
Ostrya japonica Sarg. – Japanese hophornbeam -
Japan, Korea, northern China •
Ostrya knowltonii Coville – Knowlton hophornbeam, western hophornbeam, wolf hophornbeam -
Utah,
Arizona,
New Mexico,
Texas •
Ostrya multinervis Rehd. – Central Chinese hop-hornbeam - central China •
Ostrya rehderiana Chun – Zhejiang hop-hornbeam -
Zhejiang Province in China •
Ostrya trichocarpa D.Fang & Y.S.Wang –
Guangxi Province in China •
Ostrya virginiana (Mill.) K. Koch – eastern hophornbeam, American hophornbeam, ironwood - eastern US, eastern Canada, Mexico,
Guatemala,
El Salvador,
Honduras •
Ostrya yunnanensis W.K.Hu – Yunnan hop-hornbeam -
Yunnan Province in China • †
Ostrya oregoniana (fossil) • †
Ostrya scholzii (fossil)
Fossil record †
Ostrya scholzii fossil seeds of the
Chattian stage,
Oligocene, are known from the Oberleichtersbach Formation in the
Rhön Mountains, central
Germany. == References ==