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common milkweed
Asclepias syriaca
9,690 observations
prairie trillium
Trillium recurvatum
9,618 observations
mayapple
Podophyllum peltatum
8,426 observations
Virginia Springbeauty
Claytonia virginica
7,850 observations
Virginia bluebells
Mertensia virginica
7,658 observations
American pokeweed
Phytolacca americana
6,036 observations
wild bergamot
Monarda fistulosa
6,034 observations
bloodroot
Sanguinaria canadensis
6,020 observations
wild geranium
Geranium maculatum
5,647 observations
garlic mustard
Alliaria petiolata
5,643 observations
ground-ivy
Glechoma hederacea
5,583 observations
blue phlox
Phlox divaricata
5,327 observations
cut-leaved toothwort
Cardamine concatenata
4,788 observations
Amur honeysuckle
Lonicera maackii
4,742 observations
wild carrot
Daucus carota
4,562 observations
white fawnlily
Erythronium albidum
4,303 observations
tall bellflower
Campanulastrum americanum
4,272 observations
Dutchman's breeches
Dicentra cucullaria
4,104 observations
Jack-in-the-Pulpit
Arisaema triphyllum
4,103 observations
chicory
Cichorium intybus
4,085 observations
compass plant
Silphium laciniatum
4,042 observations
butterfly milkweed
Asclepias tuberosa
4,005 observations
rattlesnake master
Eryngium yuccifolium
3,851 observations
eastern shooting star
Primula meadia
3,851 observations
grey-headed coneflower
Ratibida pinnata
3,811 observations
Red Clover
Trifolium pratense
3,740 observations
white snakeroot
Ageratina altissima
3,566 observations
cup plant
Silphium perfoliatum
3,526 observations
box elder
Acer negundo
3,471 observations
bittersweet nightshade
Solanum dulcamara
3,364 observations
dame's rocket
Hesperis matronalis
3,362 observations
Virginia waterleaf
Hydrophyllum virginianum
3,351 observations
Butterweed
Packera glabella
3,317 observations
American black elderberry
Sambucus canadensis
3,295 observations
eastern poison ivy
Toxicodendron radicans
3,251 observations
great blue lobelia
Lobelia siphilitica
3,211 observations
common jewelweed
Impatiens capensis
3,141 observations
great mullein
Verbascum thapsus
3,140 observations
prairie dock
Silphium terebinthinaceum
3,040 observations
swamp milkweed
Asclepias incarnata
2,988 observations
American jumpseed
Persicaria virginiana
2,975 observations
Ohio spiderwort
Tradescantia ohiensis
2,930 observations
white clover
Trifolium repens
2,919 observations
red columbine
Aquilegia canadensis
2,890 observations
purple crownvetch
Securigera varia
2,878 observations
multiflora rose
Rosa multiflora
2,871 observations
New England aster
Symphyotrichum novae-angliae
2,801 observations
Siberian squill
Scilla siberica
2,758 observations
cutleaf teasel
Dipsacus laciniatus
2,719 observations
sharp-lobed hepatica
Hepatica acutiloba
2,719 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)
- American pokeweed (Phytolacca americana)
- wild bergamot (Monarda fistulosa)
- bloodroot (Sanguinaria canadensis)
- wild geranium (Geranium maculatum)
- garlic mustard (Alliaria petiolata)
- The most observed plant in Illinois is common milkweed (Asclepias syriaca), with 9,690 recorded observations.