Canyon ironwood
Ostrya knowltonii Coville

Ostrya knowltonii, also known as Canyon ironwood, is a tree species in the Betulaceae family. It is native to parts of the United States, including Arizona, New Mexico, Texas, and Utah. The species was first described in 1894 by Coville.
Description
Ostrya knowltonii is a tree commonly referred to as Canyon ironwood. It belongs to the Betulaceae family and is native to specific regions in the United States. Its distribution is limited to Arizona, New Mexico, Texas, and Utah. The species was scientifically described in 1894 by Coville. It is one of several trees known as ironwood and is also called Knowlton's hophornbeam, western hophornbeam, woolly hophornbeam, and wolf hophornbeam.
Other common names
IronwoodCanyon ironwoodKnowlton's hophornbeamKnowlton’s hop-hornbeamWestern hop-hornbeam
Distribution
Arizona · New Mexico · Texas · Utah
Synonyms
Ostrya chisosensisOstrya knowltonii var. chisosensis