Loading species data...
Fetching observations
common milkweed
Asclepias syriaca
10,471 observations
prairie trillium
Trillium recurvatum
9,636 observations
mayapple
Podophyllum peltatum
8,496 observations
Virginia Springbeauty
Claytonia virginica
7,856 observations
Virginia bluebells
Mertensia virginica
7,667 observations
wild bergamot
Monarda fistulosa
6,570 observations
American pokeweed
Phytolacca americana
6,199 observations
bloodroot
Sanguinaria canadensis
6,039 observations
ground-ivy
Glechoma hederacea
5,743 observations
wild geranium
Geranium maculatum
5,678 observations
garlic mustard
Alliaria petiolata
5,676 observations
blue phlox
Phlox divaricata
5,364 observations
wild carrot
Daucus carota
4,847 observations
Amur honeysuckle
Lonicera maackii
4,822 observations
cut-leaved toothwort
Cardamine concatenata
4,792 observations
tall bellflower
Campanulastrum americanum
4,717 observations
chicory
Cichorium intybus
4,425 observations
butterfly milkweed
Asclepias tuberosa
4,371 observations
compass plant
Silphium laciniatum
4,356 observations
grey-headed coneflower
Ratibida pinnata
4,339 observations
white fawnlily
Erythronium albidum
4,310 observations
rattlesnake master
Eryngium yuccifolium
4,139 observations
Jack-in-the-Pulpit
Arisaema triphyllum
4,133 observations
Dutchman's breeches
Dicentra cucullaria
4,112 observations
Red Clover
Trifolium pratense
3,952 observations
eastern shooting star
Primula meadia
3,881 observations
cup plant
Silphium perfoliatum
3,847 observations
white snakeroot
Ageratina altissima
3,626 observations
bittersweet nightshade
Solanum dulcamara
3,561 observations
box elder
Acer negundo
3,545 observations
American black elderberry
Sambucus canadensis
3,504 observations
dame's rocket
Hesperis matronalis
3,419 observations
eastern poison ivy
Toxicodendron radicans
3,361 observations
Virginia waterleaf
Hydrophyllum virginianum
3,358 observations
Butterweed
Packera glabella
3,336 observations
great mullein
Verbascum thapsus
3,257 observations
common jewelweed
Impatiens capensis
3,255 observations
swamp milkweed
Asclepias incarnata
3,245 observations
great blue lobelia
Lobelia siphilitica
3,235 observations
prairie dock
Silphium terebinthinaceum
3,161 observations
purple crownvetch
Securigera varia
3,113 observations
white clover
Trifolium repens
3,060 observations
American jumpseed
Persicaria virginiana
3,050 observations
Ohio spiderwort
Tradescantia ohiensis
3,017 observations
multiflora rose
Rosa multiflora
2,950 observations
red columbine
Aquilegia canadensis
2,933 observations
cutleaf teasel
Dipsacus laciniatus
2,929 observations
New England aster
Symphyotrichum novae-angliae
2,833 observations
Carolina horsenettle
Solanum carolinense
2,821 observations
prairie rosinweed
Silphium integrifolium
2,790 observations
Frequently Asked Questions
- The 10 most common plants in Illinois are:
- common milkweed (Asclepias syriaca)
- prairie trillium (Trillium recurvatum)
- mayapple (Podophyllum peltatum)
- Virginia Springbeauty (Claytonia virginica)
- Virginia bluebells (Mertensia virginica)
- wild bergamot (Monarda fistulosa)
- American pokeweed (Phytolacca americana)
- bloodroot (Sanguinaria canadensis)
- ground-ivy (Glechoma hederacea)
- wild geranium (Geranium maculatum)
- The most observed plant in Illinois is common milkweed (Asclepias syriaca), with 10,471 recorded observations.