A SYNOPSIS WITH KEYS FOR THE GENUS ANTENNARIA (ASTERACEAE, INULEAE, GNAPHALIINAE) OF NORTH-AMERICA

Keys to all species of Antennaria of North America and Mexico are presented. The number of taxa acknowledged in the current treatment is 46, including 35 species with 17 subspecies circumscribed among some of the more diverse species. The treatment is a highly conservative one, considering the fact that over 350 taxa of Antennaria have been described for North America, the majority in the last 100 years. A synopsis enumerates all the recognized taxa and provides their correct name, widely used synonyms, basionym, type locality, key morphological features, and assorted taxonomic notes. The new combinations, Antennaria friesiana (Trautv.) Ekman ssp. neoalaskana (A.E. Pors.) Bayer and Stebbins comb. et stat.nov. and Antennaria luzuloides Torr. and A. Gray ssp. aberrans (E..Nels.) Bayer and Stebbins comb.nov., are proposed.