Leptotaenia Nutt. ex Torr. & A.Gray Dataset GBIF Backbone Taxonomy Rank GENUS Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Apiales family Apiaceae genus Cymopterus Name Homonyms Leptotaenia Nutt. ex Torr. & A.Gray Leptotaenia Cohn, 1901 Leptotaenia Nutt.