Download a professional PDF field guide featuring all the species found in Mason County. Perfect for outdoor adventures, education, and nature exploration.
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Showing 20 most frequently observed species out of 79 total documented species.
Poison Ivy

Soapwort
Blackcap

Catgut
Red-Winged Blackbird
Hedge Garlic

Red Carpenter Ant
Umbrella Wort

Squawbush
Beebalm
Horseweed
Redcedar
Fowler'S Toad
Dwarf-Dandelion

Horse-Mint
Ebony Spleenwort

Prairie Golden-Aster
Get all 79 species with 3-4 high-quality images each, detailed descriptions, and a downloadable PDF for offline use.
Compared to 8 nearby locations in Mason County County, Illinois
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 Mason County County.
The Mason County ecosystem supports 79 documented wildlife species across 72 taxonomic genera. Located in Mason County, Illinois, 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 Topeka, Mason County hosts 229% more species diversity. This location ranks #23 for species diversity among 100 Mason County County natural areas, placing it in the 77th percentile for biodiversity.