Pinus strobus var. prostrata Mast. Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Tracheophyta class Pinopsida order Pinales family Pinaceae genus Pinus species Pinus strobus Name Homonyms Pinus strobus var. prostrata Mast. Pinus strobus f. prostrata (Beissn.) Fernald & Weath. Pinus strobus subsp. prostrata Beissn.