CLICK ON A KEY TO OPEN THE PDF. PLEASE NOTE THAT SOME KEYS MAY HAVE OUTDATED TAXONOMY BUT YOU CAN CHECK THE NY FLORA ATLAS FOR THE LATEST NEW YORK PLANT NAMES.
Acorus Native vs. Introduced by Hough
Apiaceae Family plants with multiple leaflets by Young 2012
Aquatic plant key of Central New York by Werier
Aquatic plants of Massachusetts Guide by Mass DCR 2016
Ash field guide New York Botanical Garden 2017
Aster genera by Arthur Haines 2001
Asters of New England key by Tal 2010
Athyrium angustum vs. asplenioides by Kelloff 2002
Botrychium of NY Key by Gilman 2011
Carex Acrocystis Group by Werier 2006
Carex of New England by Standley 2011
Carex Subgenera & Section List of NY by Reznicek 2006
Cornus rugosa vs. Cornus sericea by Lighty
Dichanthelium of NY key by Young 2016
Dichanthelium section Lanuginosa by Haines
Digitaria species key by Young 2009
Eleocharis of NY key by Young 2009
Humulus species key and info by Small 1978
Juncus Species of New York dichotomous key by Young 1990
Moss Genera in New Jersey by Bowman 2017
Persicaria extremiorientalis vs. lapathifolia vs. maculosa key by Atha 2010
Phragmites native vs nonnative by Swearingen & Saltonstall 2010
Potamogeton hybrids description by Hellquist
Potamogeton ID by Barre Hellquist 1999
Potamogeton ID by Eric Hellquist 2017
Salix identification in New York State ESF guide
SLELO list of keys and ID info for invasive plants
Sphagnum macroscopic of eastern Canada 1997
Utricularia key by Taylor 1991
Adirondack Botanical Society 