Juglans nigra var. oblonga Marshall Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Fagales family Juglandaceae genus Juglans species Juglans nigra Name Homonyms Juglans nigra var. oblonga Marshall Juglans nigra f. oblonga (Marshall) Fernald Juglans nigra subsp. oblonga Marshall