Abies nigra var. pumila Knight ex Godr. Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Tracheophyta class Pinopsida order Pinales family Pinaceae genus Picea species Picea mariana Name Homonyms Abies nigra var. pumila Knight ex Gordon & Glend. Abies nigra var. pumila Knight Abies nigra var. pumila Knight ex Godr.