Columbia subject headings:
Botany--New York (State)--Buffalo Region.
Botany--Niagara River Region (N.Y. and Ont.)
Harvard subject headings:
Botany--New York (State)--Buffalo Region--Classification.
Botany--New York (State)--Buffalo Region--Identificaiton.
Botany--Niagara River Region (N.Y. and Ont.)--Classification.
Botany--Niagara River Region (N.Y. and Ont.)--Identification.
Princeton subject headings: