Download a professional PDF field guide featuring all the species found in Union County. Perfect for outdoor adventures, education, and nature exploration.
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Showing 20 most frequently observed species out of 78 total documented species.
Hedge Garlic
Wineberry
American Robin
Sweet Gum
Gray Squirrel
Mugwort
Canada Goose
Silkweed
Mallard
Monarch
Common Cardinal
Haymaids
American Beech
Poison Ivy
Song Sparrow
Jumpseed
Richweed

Spotted Lanternfly
Japanese Barberry
Mourning Dove
Get all 78 species with 3-4 high-quality images each, detailed descriptions, and a downloadable PDF for offline use.
Compared to 8 nearby locations in Union County County, New Jersey
These comparisons are based on documented wildlife observations from citizen science data. Locations with higher species counts may have more observation activity, different habitat types, or larger coverage areas. Regional rankings help identify biodiversity hotspots and unique natural areas within Union County County.
The Union County ecosystem supports 78 documented wildlife species across 76 taxonomic genera. Located in Union County, New Jersey, this area provides critical habitat with diverse natural communities. The location hosts 16 frequently observed species and 15 occasionally documented species, creating a balanced ecosystem with both resident and visiting wildlife. Compared to nearby Fanwood, Union County hosts 4% more species diversity.