Most Common Species
The 20 species reported most often here, of 50 in the full guide.
Toxicodendron radicans
Poison Ivy
Very Common10.86 obs.
Ambrosia trifida
Horseweed
Very Common7.35 obs.
A PDF field guide to the species reported in and around Mercer County, with common and scientific names and up to 3 photos of each, laid out for use in the field and offline.
People most often report Hackberry Nipplegall Psyllid, Monarch, American Robin, Common Garter Snake and Common Eastern Bumblebee in and around Mercer County. Plants lead the list with 54 species, followed by 15 insects and 4 birds.
The 20 species reported most often here, of 50 in the full guide.
Poison Ivy
Horseweed
Beebalm
Blue Lobelia
Haymaids
Leafcup
Hackberry Nipplegall Psyllid
Mayapple
Hedge Garlic
Woodbine
Monarch
Ragweed
American Robin
Common Garter Snake
Blue Phlox
Common Eastern Bumblebee