Ostrya knowltonii subsp. chisosensis (Correll) E.Murray Dataset GBIF Backbone Taxonomy Rank SUBSPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Fagales family Betulaceae genus Ostrya species Ostrya knowltonii Name Homonyms Ostrya knowltonii var. chisosensis (Correll) A.E.Murray Ostrya knowltonii subsp. chisosensis (Correll) E.Murray