A PDF field guide to the species reported in and around South Oak 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 South Oak Preserve include Black Swallowtail, Buckthorn, Quiver-Leaf, Squawroot and Bitterroot. Plants lead the list with 39 species.
The 20 species reported most often here, of 40 in the full guide.

Buckthorn

Quiver-Leaf

Squawroot

Bitterroot
Black Swallowtail
Tell me what you're looking for, and I'll do my best to answer.

Queen Of The Prairie

Winged Lythrum
Hedge Garlic

Motherwort

Cup Plant
Japanese Barberry
Mayapple

Horsetops
Woodbine

Buttonweed

Cosmos

Disc Mayweed
Tell me what you're looking for, and I'll do my best to answer.
Modesty
Haymaids