Abstract
Keys to all species of Antennaria of Alaska and Yukon Territory are presented. The number of taxa acknowledged in the current treatment is 17, including 10 species with several subspecies circumscribed within some of the more diverse species. A synopsis enumerating all the recognized taxa provides their correct name, relevant synonyms, basionym, type locality, key morphological features, chromosome numbers and assorted taxonomic notes. Maps of each taxon are provided.