American Amphitropical Disjunction
Working Group
(see figshare site for data and comments)

LINKS and RESOURCES

DISTRIBUTION MAPS:

Encyclopedia of Life

GBIF (Global Biodiversity Information Facility):






SPECIES LISTS NORTH AMERICA:

Mexico:
Rebman et al., 2016. Baja California, Mexico. [PDF] 
Villaseñor, 2016. Mexico. [PDF] 


USA and Canada:
Consortium of California Herbaria / Jepson eFlora (California)
Consortium of Pacific Northwest Herbaria (Northwestern USA, Western Canada)
Southwest Environmental Information Network-SEINet (Southwestern USA)

USDA Natural Resources Conservation Service (North America north of Mexico)