A PDF field guide to the species reported in and around Grassy Lake 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 Grassy Lake Forest Preserve include Ambiguous Moth, Unspotted Looper Moth, Forage Looper Moth, Common Looper Moth and Schlaeger's Fruitworm Moth. Plants lead the list with 37 species, followed by 13 insects.
The 20 species reported most often here, of 50 in the full guide.

Buckthorn

Burnweed
Boxelder
Modesty
Hedge Garlic

Motherwort
Tell me what you're looking for, and I'll do my best to answer.
Treacle-Berry
Burningbush
Beebalm

Gooseneck Loosestrife

Pleurisy Root

Ashweed
Haymaids
Beebalm

Michaelmas Daisy
Boar Thistle
Dulcamara
Horseweed
Tell me what you're looking for, and I'll do my best to answer.

Carpet Box
Mayapple