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

Queen Of The Prairie

Winged Lythrum
Hedge Garlic

Motherwort

Cup Plant
Japanese Barberry
Mayapple

Horsetops
Woodbine

Buttonweed

Cosmos

Disc Mayweed
Modesty
Haymaids