A PDF field guide to the species reported in and around Paul Douglas Forest Preserve, with common and scientific names and up to 3 photos of each, laid out for use in the field and offline.
Species people report often in and around Paul Douglas Forest Preserve include Wood Tick, Eared Grebe, Orb Weavers, Buckthorn and Buttonweed. Plants lead the list with 46 species, followed by 3 arachnids.
The 20 species reported most often here, of 50 in the full guide.

Buckthorn

Buttonweed
Beebalm
Haymaids

Burnweed
Modesty
Tell me what you're looking for, and I'll do my best to answer.
Ditch Reed
Dogbane
Boar Thistle

Michaelmas Daisy
Horseweed
Heal-All
Myrtle

Rough Cinquefoil

Black Chokeberry
White Dogwood
Squawbush
Beebalm
Tell me what you're looking for, and I'll do my best to answer.

Ajuga
Wood Tick