A PDF field guide to the species reported in and around Roland Olson County Forest Preserve, with common and scientific names and up to 3 photos of each, laid out for use in the field and offline.
The animals people report most often in and around Roland Olson County Forest Preserve include Hackberry Nipplegall Psyllid, Luna Moth, Tuftlegged Orbweaver, Monarch and Red-Banded Leafhopper. Plants lead the list with 42 species, followed by 6 insects.
The 20 species reported most often here, of 50 in the full guide.
Poison Ivy
Hedge Garlic

Wild Cucumber
Wild Geranium
Poke
Sharp-Lobed Hepatica

Hackberry Nipplegall Psyllid
Mayapple
Luna Moth
Tuftlegged Orbweaver

Hoary Alison

Grass Pink
Butterflyweed
Monarch
White Cockle

Red-Banded Leafhopper

Redroot
Blackcap

Toothcup
Boxelder