Native plants · Illinois

Native plants of Union County

1,000 plant species are recorded as native to Illinois in Kew’s World Checklist of Vascular Plants and USDA PLANTS, and recorded in Union County by USDA PLANTS. 384 of them have growing records you can filter by light, moisture, height and estimated cold hardiness. 4 more species are listed as both native and introduced and kept in a separate section.

County summary · USDA PLANTS and Kew WCVP

Union County, Illinois

Native species: 1,000 Typical Illinois county: 641 (median of 102 counties)
Garden-ready natives: 384 Typical Illinois county: 272
Share by type (all 1,000 native species): Percent of the 1,000 native species in each growth type

Tree 12% (116)
Shrub 3% (29)
Wildflower (forb) 56% (563)
Grass or grass-like 20% (198)
Vine 5% (52)
Fern 4% (42)

Wildflowers make up the largest share of the native list (56%), followed by grasses and grass-like plants (20%).

Recorded native ranges can include long-established populations that spread from gardens; check your state’s native plant society list for local guidance. How native status is decided.

ZIP codes mainly in this county fall in USDA hardiness zone 7a (2023 map).

The native plant list

Garden-ready natives 384

Native species with PLANTS growing records (height, light, moisture, minimum temperature). “—” means PLANTS has no value.

Garden-ready native plants of Union County, Illinois
Plant	Type	Height	Light	Water use	Hardy to
Allegheny blackberry Rubus allegheniensis	Shrub	6 ft	Shade-tolerant	Medium	Zone 4b
American basswood Tilia americana	Tree	100 ft	Shade-tolerant	Medium	Zone 2b
American beech Fagus grandifolia	Tree	80 ft	Shade-tolerant	Medium	Zone 3a
American bellflower Campanulastrum americanum	Wildflower (forb)	6 ft	Shade-tolerant	Medium	Zone 12b
American bittersweet Celastrus scandens	Vine	15 ft	Shade-tolerant	High	Zone 3b
American elm Ulmus americana	Tree	120 ft	Sun–part shade	High	Zone 2b
American hazelnut Corylus americana	Shrub	10 ft	Sun–part shade	Medium	Zone 4a
American holly Ilex opaca	Tree	40 ft	Shade-tolerant	Medium	Zone 5a
American hornbeam Carpinus caroliniana	Tree	30 ft	Shade-tolerant	Medium	Zone 4a
American lotus Nelumbo lutea	Wildflower (forb)	3 ft	Sun	High	Zone 3b
American plum Prunus americana	Tree	24 ft	Sun	Medium	Zone 3b
American pokeweed Phytolacca americana	Wildflower (forb)	7.3 ft	Shade-tolerant	Medium	Zone 4a
American spongeplant Limnobium spongia	Wildflower (forb)	6 in	Sun	High	Zone 5a
American sycamore Platanus occidentalis	Tree	100 ft	Sun–part shade	High	Zone 4a
American water horehound Lycopus americanus	Wildflower (forb)	1.8 ft	Shade-tolerant	High	Zone 3b
American water plantain Alisma subcordatum	Wildflower (forb)	6 in	Sun	High	Zone 4a
American water-willow Justicia americana	Wildflower (forb)	2.5 ft	Shade-tolerant	Medium	Zone 4b
American wisteria Wisteria frutescens	Vine	50 ft	Shade-tolerant	Medium	Zone 7a
Appalachian blazing star Liatris squarrulosa	Wildflower (forb)	2.5 ft	Sun–part shade	Medium	Zone 7a
arrowleaf tearthumb Polygonum sagittatum	Vine	1 ft	Sun	Medium	Zone 6a
Atlantic camas Camassia scilloides	Wildflower (forb)	2.5 ft	Shade-tolerant	Medium	Zone 4b
awlfruit sedge Carex stipata	Grass or grass-like	3.5 ft	Shade-tolerant	Medium	Zone 3b
bald cypress Taxodium distichum	Tree	130 ft	Sun–part shade	High	Zone 5b
beaked agrimony Agrimonia rostellata	Wildflower (forb)	2.3 ft	Sun–part shade	Medium	Zone 4a
bearded beggarticks Bidens aristosa	Wildflower (forb)	3.5 ft	Sun–part shade	High	Zone 12b
big bluestem Andropogon gerardii	Grass or grass-like	6 ft	Sun	Low	Zone 2b
bitternut hickory Carya cordiformis	Tree	75 ft	Sun	Medium	Zone 2b
black cherry Prunus serotina	Tree	80 ft	Sun	Medium	Zone 4a
black huckleberry Gaylussacia baccata	Shrub	4 ft	Shade-tolerant	Low	Zone 4a
black oak Quercus velutina	Tree	80 ft	Sun–part shade	Medium	Zone 4a
black raspberry Rubus occidentalis	Shrub	6 ft	Sun–part shade	Medium	Zone 4b
black walnut Juglans nigra	Tree	100 ft	Sun	High	Zone 4b
black willow Salix nigra	Tree	100 ft	Sun	High	Zone 1b
blackeyed Susan Rudbeckia hirta	Wildflower (forb)	1 ft	Sun	Medium	Zone 5a
blackgum Nyssa sylvatica	Tree	95 ft	Shade-tolerant	Medium	Zone 5b
blackjack oak Quercus marilandica	Tree	25 ft	Sun	Low	Zone 6a
blue cohosh Caulophyllum thalictroides	Wildflower (forb)	2.5 ft	Shade-tolerant	Medium	Zone 4a
blue mistflower Conoclinium coelestinum	Wildflower (forb)	3.2 ft	Shade-tolerant	Medium	Zone 6a
blunt broom sedge Carex tribuloides	Grass or grass-like	3 ft	Shade-tolerant	Medium	Zone 4b
blunt spikerush Eleocharis obtusa	Grass or grass-like	1.6 ft	Sun	Medium	Zone 11a
bluntleaf bedstraw Galium obtusum	Wildflower (forb)	1.5 ft	Shade-tolerant	High	Zone 4a
bog rush Juncus biflorus	Grass or grass-like	3.5 ft	Shade-tolerant	High	Zone 5b
boxelder Acer negundo	Tree	60 ft	Shade-tolerant	Medium	Zone 2b
bristly buttercup Ranunculus hispidus	Wildflower (forb)	2.5 ft	Shade-tolerant	Medium	Zone 4a
broadfruit bur-reed Sparganium eurycarpum	Wildflower (forb)	4.9 ft	Sun–part shade	High	Zone 4a
broadleaf arrowhead Sagittaria latifolia	Wildflower (forb)	4.9 ft	Sun	High	Zone 4a
broadleaf cattail Typha latifolia	Wildflower (forb)	5 ft	Sun–part shade	High	Zone 3b
broadleaf rosette grass Dichanthelium latifolium	Grass or grass-like	3.3 ft	Sun–part shade	Low	Zone 3a
broom sedge Carex scoparia	Grass or grass-like	2.5 ft	Shade-tolerant	High	Zone 3b
broomsedge bluestem Andropogon virginicus	Grass or grass-like	3 ft	Sun	Medium	Zone 5b
bulbous bittercress Cardamine bulbosa	Wildflower (forb)	1.4 ft	Shade-tolerant	Medium	Zone 4a
bur oak Quercus macrocarpa	Tree	100 ft	Sun–part shade	Medium	Zone 3b
bur-reed sedge Carex sparganioides	Grass or grass-like	3 ft	Shade-tolerant	High	Zone 4a
burningbush Euonymus atropurpureus	Tree	10 ft	Shade-tolerant	Low	—
Bush's sedge Carex bushii	Grass or grass-like	2 ft	Sun–part shade	Medium	Zone 5a
butterfly milkweed Asclepias tuberosa	Wildflower (forb)	2 ft	Sun	Low	Zone 4a
butternut Juglans cinerea	Tree	80 ft	Sun	Medium	Zone 4a
butterweed Packera glabella	Wildflower (forb)	3.2 ft	Sun	High	Zone 10b
calico aster Symphyotrichum lateriflorum	Wildflower (forb)	4 ft	Sun	Medium	Zone 4a
Canada germander Teucrium canadense	Wildflower (forb)	3.3 ft	Sun–part shade	High	Zone 3a
Canada goldenrod Solidago canadensis	Wildflower (forb)	3.5 ft	Sun	Medium	Zone 3a
Canada wildrye Elymus canadensis	Grass or grass-like	3 ft	Shade-tolerant	Medium	Zone 3a
Canadian horseweed Conyza canadensis	Wildflower (forb)	5 ft	Sun	Medium	Zone 12b
Canadian plum Prunus nigra	Tree	9 ft	Sun	—	Zone 9b
Canadian rush Juncus canadensis	Grass or grass-like	3.2 ft	Sun–part shade	Medium	Zone 4a
Canadian waterweed Elodea canadensis	Wildflower (forb)	—	Sun	High	Zone 4a
cardinalflower Lobelia cardinalis	Wildflower (forb)	5.9 ft	Shade-tolerant	Low	Zone 4a
Carolina elephantsfoot Elephantopus carolinianus	Wildflower (forb)	2.7 ft	Sun	Medium	Zone 6a
Carolina fanwort Cabomba caroliniana	Wildflower (forb)	—	Sun–part shade	High	Zone 5a
Carolina foxtail Alopecurus carolinianus	Grass or grass-like	1.7 ft	Sun	Low	Zone 3a
Carolina rose Rosa carolina	Shrub	5 ft	Sun–part shade	Low	Zone 3a
cat greenbrier Smilax glauca	Vine	1 ft	Shade-tolerant	Medium	Zone 6a
catchfly grass Leersia lenticularis	Grass or grass-like	2.6 ft	Sun	Medium	Zone 4a
cattail sedge Carex typhina	Grass or grass-like	2 ft	Shade-tolerant	High	Zone 4b
cherrybark oak Quercus pagoda	Tree	120 ft	Sun	Medium	Zone 6b
chestnut oak Quercus montana	Tree	73 ft	Sun–part shade	Medium	Zone 4a
Chickasaw plum Prunus angustifolia	Tree	12 ft	Sun	Medium	Zone 4b
chinquapin oak Quercus muehlenbergii	Tree	70 ft	Sun	Medium	Zone 4a
cinnamon fern Osmunda cinnamomea	Fern	4.9 ft	Shade-tolerant	Medium	Zone 4a
climbing rose Rosa setigera	Vine	16 ft	Sun	Low	Zone 6a
coast cockspur grass Echinochloa walteri	Grass or grass-like	6.5 ft	Sun	High	Zone 10b
coastal plain willow Salix caroliniana	Tree	33 ft	Sun–part shade	High	Zone 7b
cockspur hawthorn Crataegus crus-galli	Tree	30 ft	Sun	Low	Zone 4a
common blue violet Viola sororia	Wildflower (forb)	4 in	Sun–part shade	High	Zone 4b
common blue wood aster Symphyotrichum cordifolium	Wildflower (forb)	5 ft	Sun	Low	Zone 3b
common buttonbush Cephalanthus occidentalis	Tree	15 ft	Shade-tolerant	High	Zone 4a
common duckweed Lemna minor	Wildflower (forb)	—	Sun	High	Zone 3b
common evening primrose Oenothera biennis	Wildflower (forb)	5 ft	Sun	Medium	Zone 4b
common goldstar Hypoxis hirsuta	Wildflower (forb)	10 in	Sun–part shade	Medium	Zone 4a
common hackberry Celtis occidentalis	Tree	60 ft	Shade-tolerant	Low	Zone 2b
common hoptree Ptelea trifoliata	Tree	25 ft	Sun–part shade	High	Zone 4a
common persimmon Diospyros virginiana	Tree	55 ft	Shade-tolerant	Medium	Zone 5a
common rush Juncus effusus	Grass or grass-like	6.6 ft	Sun	Medium	Zone 3b
common selfheal Prunella vulgaris	Wildflower (forb)	1.5 ft	Sun–part shade	Medium	Zone 3b
common serviceberry Amelanchier arborea	Tree	36 ft	Shade-tolerant	Medium	Zone 2b
common sneezeweed Helenium autumnale	Wildflower (forb)	4.9 ft	Sun	Medium	Zone 3a
common winterberry Ilex verticillata	Tree	10 ft	Sun–part shade	High	Zone 4b
coon's tail Ceratophyllum demersum	Wildflower (forb)	—	Sun–part shade	High	Zone 3b
copper iris Iris fulva	Wildflower (forb)	3.3 ft	Shade-tolerant	High	Zone 5a
coralberry Symphoricarpos orbiculatus	Shrub	2 ft	Sun–part shade	High	Zone 5a
crimsoneyed rosemallow Hibiscus moscheutos	Wildflower (forb)	6.6 ft	Sun	High	Zone 6a
cucumber tree Magnolia acuminata	Tree	100 ft	Sun–part shade	High	Zone 5b
cup plant Silphium perfoliatum	Wildflower (forb)	6 ft	Sun–part shade	—	Zone 2b
cursed buttercup Ranunculus sceleratus	Wildflower (forb)	2 ft	Shade-tolerant	High	Zone 12b
cypressknee sedge Carex decomposita	Grass or grass-like	4.5 ft	Shade-tolerant	High	Zone 6a
deertongue Dichanthelium clandestinum	Grass or grass-like	2 ft	Sun	Low	Zone 4a
dense blazing star Liatris spicata	Wildflower (forb)	4.5 ft	Sun–part shade	Medium	Zone 5b
devil's beggartick Bidens frondosa	Wildflower (forb)	4 ft	Sun–part shade	Medium	Zone 12a
devil's darning needles Clematis virginiana	Vine	15 ft	Sun–part shade	Medium	Zone 3b
devil's walkingstick Aralia spinosa	Tree	20 ft	Sun	High	Zone 4b
disk waterhyssop Bacopa rotundifolia	Wildflower (forb)	1 in	Sun	High	Zone 4a
ditch stonecrop Penthorum sedoides	Wildflower (forb)	2.6 ft	Sun–part shade	Medium	Zone 4b
dotted smartweed Polygonum punctatum	Wildflower (forb)	3.2 ft	Sun	Medium	Zone 10b
downy yellow violet Viola pubescens	Wildflower (forb)	1.3 ft	Shade-tolerant	Medium	Zone 4a
dwarf St. Johnswort Hypericum mutilum	Wildflower (forb)	2.6 ft	Sun–part shade	Medium	Zone 5a
eastern cottonwood Populus deltoides	Tree	190 ft	Sun	High	Zone 3a
eastern gamagrass Tripsacum dactyloides	Grass or grass-like	5 ft	Sun	High	Zone 5a
eastern narrowleaf sedge Carex amphibola	Grass or grass-like	2 ft	Shade-tolerant	Medium	Zone 7a
eastern purple coneflower Echinacea purpurea	Wildflower (forb)	1.2 ft	Sun	Medium	Zone 4a
eastern redbud Cercis canadensis	Tree	30 ft	Shade-tolerant	Low	Zone 4b
eastern redcedar Juniperus virginiana	Tree	50 ft	Sun–part shade	Low	Zone 3a
eastern swampprivet Forestiera acuminata	Tree	33 ft	Shade-tolerant	High	Zone 5b
eastern woodland sedge Carex blanda	Grass or grass-like	2 ft	Shade-tolerant	High	Zone 4b
fall panicgrass Panicum dichotomiflorum	Grass or grass-like	3.3 ft	Sun	High	Zone 3a
false daisy Eclipta prostrata	Wildflower (forb)	3.2 ft	Sun–part shade	Medium	Zone 10b
false indigo bush Amorpha fruticosa	Shrub	15 ft	Sun	Low	Zone 3b
farkleberry Vaccinium arboreum	Tree	28 ft	Shade-tolerant	Medium	Zone 6a
field horsetail Equisetum arvense	Fern	11 in	Sun–part shade	High	Zone 3a
field paspalum Paspalum laeve	Grass or grass-like	2.9 ft	Sun–part shade	Medium	Zone 6a
flowering dogwood Cornus florida	Tree	30 ft	Shade-tolerant	Low	Zone 4b
fowl bluegrass Poa palustris	Grass or grass-like	4 ft	Sun–part shade	Medium	Zone 3b
fowl mannagrass Glyceria striata	Grass or grass-like	5.7 ft	Shade-tolerant	Medium	Zone 3b
fox sedge Carex vulpinoidea	Grass or grass-like	3.2 ft	Sun–part shade	Medium	Zone 3b
foxglove beardtongue Penstemon digitalis	Wildflower (forb)	4 ft	Shade-tolerant	Low	Zone 3b
fragrant flatsedge Cyperus odoratus	Grass or grass-like	2 ft	Sun	Medium	Zone 11b
Frank's sedge Carex frankii	Grass or grass-like	2 ft	Shade-tolerant	High	Zone 5a
fringed brome Bromus ciliatus	Grass or grass-like	4 ft	Shade-tolerant	Medium	Zone 7a
fringed sedge Carex crinita	Grass or grass-like	5.2 ft	Sun–part shade	Medium	Zone 4a
fringeleaf wild petunia Ruellia humilis	Wildflower (forb)	2.6 ft	Shade-tolerant	Low	Zone 4a
frost grape Vitis vulpina	Vine	83 ft	Sun–part shade	Medium	Zone 5a
Georgia bulrush Scirpus georgianus	Grass or grass-like	4.5 ft	Sun–part shade	Medium	Zone 3b
giant cane Arundinaria gigantea	Shrub	25 ft	Sun	Medium	Zone 5a
giant goldenrod Solidago gigantea	Wildflower (forb)	8.2 ft	Sun–part shade	Medium	Zone 4a
golden ragwort Packera aurea	Wildflower (forb)	3.9 ft	Shade-tolerant	High	Zone 3a
golden tickseed Coreopsis tinctoria	Wildflower (forb)	3 ft	Sun–part shade	High	Zone 12b
gray dogwood Cornus racemosa	Shrub	10 ft	Shade-tolerant	Medium	Zone 2b
gray goldenrod Solidago nemoralis	Wildflower (forb)	2 ft	Sun	Medium	Zone 4a
Gray's sedge Carex grayi	Grass or grass-like	3 ft	Shade-tolerant	High	Zone 4a
graybark grape Vitis cinerea	Vine	50 ft	Sun–part shade	Medium	Zone 6b
green arrow arum Peltandra virginica	Wildflower (forb)	2.3 ft	Sun–part shade	High	Zone 5a
green ash Fraxinus pennsylvanica	Tree	80 ft	Shade-tolerant	Medium	Zone 2b
green bulrush Scirpus atrovirens	Grass or grass-like	5.9 ft	Sun	Medium	Zone 2a
green hawthorn Crataegus viridis	Tree	30 ft	Sun	High	Zone 5a
greenwhite sedge Carex albolutescens	Grass or grass-like	3.9 ft	Sun–part shade	Medium	Zone 3b
groundnut Apios americana	Vine	1 ft	Shade-tolerant	Medium	Zone 5a
hairawn muhly Muhlenbergia capillaris	Grass or grass-like	3 ft	Sun	High	Zone 8a
hairy lespedeza Lespedeza hirta	Wildflower (forb)	6 ft	Sun	Low	Zone 6a
hairy sedge Carex lacustris	Grass or grass-like	5 ft	Shade-tolerant	High	Zone 4b
hairy white oldfield aster Symphyotrichum pilosum	Wildflower (forb)	3 ft	Shade-tolerant	Medium	Zone 4a
halberdleaf rosemallow Hibiscus laevis	Wildflower (forb)	8 ft	Sun–part shade	High	Zone 6a
hardstem bulrush Schoenoplectus acutus	Grass or grass-like	9.8 ft	Sun	High	Zone 3b
harvestlice Agrimonia parviflora	Wildflower (forb)	6 ft	Sun–part shade	High	Zone 4a
hazel alder Alnus serrulata	Tree	30 ft	Sun	High	Zone 5a
heartleaf peppervine Ampelopsis cordata	Vine	2 ft	Shade-tolerant	Medium	Zone 6b
honeylocust Gleditsia triacanthos	Tree	70 ft	Sun	Medium	Zone 3b
hop sedge Carex lupulina	Grass or grass-like	4.3 ft	Sun–part shade	Medium	Zone 3b
hophornbeam Ostrya virginiana	Tree	45 ft	Shade-tolerant	Low	Zone 3b
horsetail paspalum Paspalum fluitans	Grass or grass-like	2.5 ft	Sun–part shade	High	Zone 5a
Illinois bundleflower Desmanthus illinoensis	Wildflower (forb)	3 ft	Sun	Medium	Zone 5b
Indian woodoats Chasmanthium latifolium	Grass or grass-like	4.6 ft	Shade-tolerant	Medium	Zone 4a
Indiangrass Sorghastrum nutans	Grass or grass-like	6 ft	Sun	Medium	Zone 3b
Indianhemp Apocynum cannabinum	Wildflower (forb)	3.3 ft	Sun–part shade	High	Zone 3a
inland rush Juncus interior	Grass or grass-like	3 ft	Sun–part shade	Medium	Zone 3b
interrupted fern Osmunda claytoniana	Fern	4 ft	Shade-tolerant	High	Zone 3b
Jack in the pulpit Arisaema triphyllum	Wildflower (forb)	1.5 ft	Shade-tolerant	High	Zone 5b
Jerusalem artichoke Helianthus tuberosus	Wildflower (forb)	9.8 ft	Sun–part shade	Low	Zone 3a
jewelweed Impatiens capensis	Wildflower (forb)	4.9 ft	Shade-tolerant	Medium	Zone 10b
Kentucky coffeetree Gymnocladus dioicus	Tree	100 ft	Sun	Medium	Zone 4a
lanceleaf loosestrife Lysimachia lanceolata	Wildflower (forb)	2.5 ft	Shade-tolerant	Medium	Zone 5a
late purple aster Symphyotrichum patens	Wildflower (forb)	2.5 ft	Shade-tolerant	Medium	Zone 3b
leafy pondweed Potamogeton foliosus	Wildflower (forb)	—	Sun	High	Zone 3b
limestone wild petunia Ruellia strepens	Wildflower (forb)	3.6 ft	Shade-tolerant	Low	Zone 6a
little barley Hordeum pusillum	Grass or grass-like	1.2 ft	Sun	Medium	Zone 10b
little bluestem Schizachyrium scoparium	Grass or grass-like	3 ft	Sun	Low	Zone 3b
littleleaf buttercup Ranunculus abortivus	Wildflower (forb)	2.8 ft	Shade-tolerant	Medium	Zone 3a
longhair sedge Carex comosa	Grass or grass-like	5 ft	Sun–part shade	High	Zone 4b
longleaf pondweed Potamogeton nodosus	Wildflower (forb)	—	Sun	High	Zone 3b
lopsided rush Juncus secundus	Grass or grass-like	1.5 ft	Sun	Low	Zone 4a
Malabar sprangletop Leptochloa fusca	Grass or grass-like	3.3 ft	Sun	High	Zone 3a
marsh flatsedge Cyperus pseudovegetus	Grass or grass-like	2.5 ft	Sun	High	Zone 8a
marsh muhly Muhlenbergia racemosa	Grass or grass-like	3 ft	Shade-tolerant	Medium	Zone 3b
marsh seedbox Ludwigia palustris	Wildflower (forb)	2 in	Sun	High	Zone 4a
Maryland senna Senna marilandica	Wildflower (forb)	6.6 ft	Sun–part shade	Low	Zone 5b
meadow evening primrose Oenothera pilosella	Wildflower (forb)	2 ft	Sun–part shade	Medium	Zone 5a
Mexican muhly Muhlenbergia mexicana	Grass or grass-like	3 ft	Sun–part shade	Medium	Zone 4a
Mississippi buttercup Ranunculus laxicaulis	Wildflower (forb)	1.2 ft	Sun–part shade	High	Zone 6b
Missouri goldenrod Solidago missouriensis	Wildflower (forb)	3 ft	Sun–part shade	Low	Zone 3b
Missouri ironweed Vernonia missurica	Wildflower (forb)	6 ft	Sun	Medium	Zone 4a
Missouri River willow Salix eriocephala	Tree	52 ft	Shade-tolerant	High	Zone 3b
mockernut hickory Carya tomentosa	Tree	85 ft	Sun–part shade	Medium	Zone 4a
Muskingum sedge Carex muskingumensis	Grass or grass-like	3 ft	Shade-tolerant	High	Zone 4a
narrowleaf blue-eyed grass Sisyrinchium angustifolium	Wildflower (forb)	2 ft	Sun–part shade	Medium	Zone 7a
needle spikerush Eleocharis acicularis	Grass or grass-like	8 in	Sun	Medium	Zone 5a
New Jersey tea Ceanothus americanus	Shrub	3 ft	Shade-tolerant	Low	Zone 4b
nimblewill Muhlenbergia schreberi	Grass or grass-like	3.2 ft	Shade-tolerant	Low	Zone 4a
nodding beggartick Bidens cernua	Wildflower (forb)	3.2 ft	Sun–part shade	High	Zone 12a
nodding fescue Festuca subverticillata	Grass or grass-like	3 ft	Sun–part shade	Medium	Zone 3a
nodding lady's tresses Spiranthes cernua	Wildflower (forb)	1.5 ft	Sun	High	Zone 3b
northern catalpa Catalpa speciosa	Tree	60 ft	Sun	Low	Zone 3b
northern maidenhair Adiantum pedatum	Fern	1.3 ft	Shade-tolerant	Medium	Zone 3b
northern red oak Quercus rubra	Tree	81 ft	Sun–part shade	Medium	Zone 3b
northern spicebush Lindera benzoin	Tree	12 ft	Sun–part shade	Medium	Zone 5a
northern spiderlily Hymenocallis occidentalis	Wildflower (forb)	2 ft	Sun–part shade	High	Zone 7a
Ohio buckeye Aesculus glabra	Tree	68 ft	Shade-tolerant	Medium	Zone 4a
orangegrass Hypericum gentianoides	Wildflower (forb)	2 ft	Sun–part shade	Low	Zone 12a
oval-leaf sedge Carex cephalophora	Grass or grass-like	2.6 ft	Sun–part shade	Low	Zone 4a
overcup oak Quercus lyrata	Tree	80 ft	Sun–part shade	High	Zone 5a
pale purple coneflower Echinacea pallida	Wildflower (forb)	1.2 ft	Sun	Medium	Zone 4a
pale touch-me-not Impatiens pallida	Wildflower (forb)	8.2 ft	Shade-tolerant	Medium	Zone 10b
panicledleaf ticktrefoil Desmodium paniculatum	Wildflower (forb)	3 ft	Sun–part shade	Low	Zone 6a
partridge pea Chamaecrista fasciculata	Wildflower (forb)	2.4 ft	Shade-tolerant	Medium	Zone 7a
pawpaw Asimina triloba	Tree	25 ft	Shade-tolerant	Medium	Zone 4b
peachleaf willow Salix amygdaloides	Tree	60 ft	Sun	High	Zone 4a
pecan Carya illinoinensis	Tree	120 ft	Sun	High	Zone 5a
Pennsylvania bittercress Cardamine pensylvanica	Wildflower (forb)	1.5 ft	Shade-tolerant	Medium	Zone 4a
Pennsylvania smartweed Polygonum pensylvanicum	Wildflower (forb)	3.9 ft	Sun	Medium	Zone 10b
peppervine Nekemias arborea	Vine	1 in	Shade-tolerant	Medium	Zone 6a
Philadelphia fleabane Erigeron philadelphicus	Wildflower (forb)	2.8 ft	Sun–part shade	Medium	Zone 4b
pickerelweed Pontederia cordata	Wildflower (forb)	3.2 ft	Sun	High	Zone 5a
pignut hickory Carya glabra	Tree	80 ft	Sun–part shade	Medium	Zone 4a
pin oak Quercus palustris	Tree	100 ft	Sun	High	Zone 4a
pink azalea Rhododendron periclymenoides	Shrub	10 ft	Shade-tolerant	Low	Zone 5b
plains muhly Muhlenbergia cuspidata	Grass or grass-like	1.4 ft	Sun	Low	Zone 3b
possumhaw Ilex decidua	Tree	33 ft	Shade-tolerant	Medium	Zone 5b
post oak Quercus stellata	Tree	60 ft	Sun	Medium	Zone 4a
poverty rush Juncus tenuis	Grass or grass-like	1.5 ft	Sun–part shade	Medium	Zone 3b
prairie crab apple Malus ioensis	Tree	25 ft	Sun	Medium	Zone 4b
prairie fleabane Erigeron strigosus	Wildflower (forb)	3 ft	Sun	Medium	Zone 4b
prairie Junegrass Koeleria macrantha	Grass or grass-like	1.5 ft	Shade-tolerant	High	Zone 3b
prairie wedgescale Sphenopholis obtusata	Grass or grass-like	3.2 ft	Sun–part shade	Medium	Zone 3a
prairie willow Salix humilis	Shrub	10 ft	Sun–part shade	High	Zone 3a
pride of Ohio Dodecatheon meadia	Wildflower (forb)	2 ft	Shade-tolerant	Medium	Zone 3b
pumpkin ash Fraxinus profunda	Tree	120 ft	Sun–part shade	High	Zone 5a
purple lovegrass Eragrostis spectabilis	Grass or grass-like	11 in	Sun	Low	Zone 3a
purple prairie clover Dalea purpurea	Wildflower (forb)	3 ft	Sun	Medium	Zone 3b
purplehead sneezeweed Helenium flexuosum	Wildflower (forb)	3.2 ft	Sun	Low	Zone 4b
purpleleaf willowherb Epilobium coloratum	Wildflower (forb)	3.3 ft	Sun–part shade	High	Zone 4a
purplestem beggarticks Bidens connata	Wildflower (forb)	3.2 ft	Sun–part shade	High	Zone 12a
purpletop tridens Tridens flavus	Grass or grass-like	2.5 ft	Sun	Low	Zone 5a
rattlesnake fern Botrychium virginianum	Fern	1.4 ft	Shade-tolerant	Medium	Zone 3b
ravenfoot sedge Carex crus-corvi	Grass or grass-like	3 ft	Sun–part shade	Medium	Zone 4b
red buckeye Aesculus pavia	Tree	25 ft	Shade-tolerant	High	Zone 5a
red maple Acer rubrum	Tree	68 ft	Sun–part shade	High	Zone 2b
red mulberry Morus rubra	Tree	70 ft	Shade-tolerant	Medium	Zone 4a
redosier dogwood Cornus sericea	Tree	12 ft	Sun	High	Zone 3b
redroot flatsedge Cyperus erythrorhizos	Grass or grass-like	2.5 ft	Sun	Medium	Zone 11a
redtop panicgrass Panicum rigidulum	Grass or grass-like	3.3 ft	Sun	High	Zone 4a
reed canarygrass Phalaris arundinacea	Grass or grass-like	5 ft	Sun	High	Zone 3b
rice cutgrass Leersia oryzoides	Grass or grass-like	4.9 ft	Sun	High	Zone 4a
ridged yellow flax Linum striatum	Wildflower (forb)	2.6 ft	Shade-tolerant	Medium	Zone 3a
river birch Betula nigra	Tree	70 ft	Sun	High	Zone 4a
riverbank grape Vitis riparia	Vine	45 ft	Sun–part shade	Medium	Zone 4a
roughfruit amaranth Amaranthus tuberculatus	Wildflower (forb)	6.6 ft	Sun	High	Zone 4a
roughleaf dogwood Cornus drummondii	Tree	20 ft	Sun–part shade	Low	Zone 4b
roundleaf goldenrod Solidago patula	Wildflower (forb)	6.6 ft	Sun–part shade	High	Zone 3a
roundleaf greenbrier Smilax rotundifolia	Vine	1 ft	Sun	Medium	Zone 4a
rufous bulrush Scirpus pendulus	Grass or grass-like	4 ft	Sun	Medium	Zone 3b
sand dropseed Sporobolus cryptandrus	Grass or grass-like	3 ft	Sun	Low	Zone 3b
sandbar willow Salix interior	Tree	30 ft	Sun	—	Zone 1a
sassafras Sassafras albidum	Tree	75 ft	Sun	Low	Zone 4b
saw greenbrier Smilax bona-nox	Vine	4 ft	Shade-tolerant	Medium	Zone 5b
sawtooth blackberry Rubus argutus	Shrub	8.2 ft	Sun	Medium	Zone 6a
sawtooth sunflower Helianthus grosseserratus	Wildflower (forb)	5 ft	Sun	Medium	Zone 3a
scarlet oak Quercus coccinea	Tree	70 ft	Sun	Medium	Zone 4b
shagbark hickory Carya ovata	Tree	75 ft	Sun–part shade	Medium	Zone 3a
shallow sedge Carex lurida	Grass or grass-like	3.2 ft	Sun–part shade	Medium	Zone 4a
sharpwing monkeyflower Mimulus alatus	Wildflower (forb)	2.3 ft	Shade-tolerant	High	Zone 5a
shellbark hickory Carya laciniosa	Tree	100 ft	Shade-tolerant	High	Zone 5a
shingle oak Quercus imbricaria	Tree	45 ft	Sun	Medium	Zone 5b
shoreline sedge Carex hyalinolepis	Grass or grass-like	4 ft	Sun–part shade	High	Zone 4b
Short's sedge Carex shortiana	Grass or grass-like	3 ft	Sun–part shade	High	Zone 5b
shortawn foxtail Alopecurus aequalis	Grass or grass-like	2.5 ft	Sun–part shade	High	Zone 3b
shortbristle horned beaksedge Rhynchospora corniculata	Grass or grass-like	6.6 ft	Sun	Medium	Zone 6a
shortleaf pine Pinus echinata	Tree	100 ft	Sun	Medium	Zone 5b
shrubby St. Johnswort Hypericum prolificum	Shrub	3.2 ft	Sun–part shade	High	Zone 4b
Shumard's oak Quercus shumardii	Tree	100 ft	Sun	Medium	Zone 5a
sideoats grama Bouteloua curtipendula	Grass or grass-like	3 ft	Sun	Medium	Zone 3a
silky dogwood Cornus amomum	Shrub	10 ft	Sun–part shade	High	Zone 3b
silky willow Salix sericea	Tree	12 ft	Sun–part shade	High	Zone 4b
silver maple Acer saccharinum	Tree	90 ft	Sun–part shade	Medium	Zone 2b
slender flatsedge Cyperus bipartitus	Grass or grass-like	5 ft	Sun	Medium	Zone 10b
slender spikerush Eleocharis tenuis	Grass or grass-like	2.9 ft	Sun	Low	Zone 5a
slippery elm Ulmus rubra	Tree	85 ft	Shade-tolerant	High	Zone 3a
small beggarticks Bidens discoidea	Wildflower (forb)	5.2 ft	Sun–part shade	High	Zone 12b
smallspike false nettle Boehmeria cylindrica	Wildflower (forb)	3.9 ft	Shade-tolerant	Medium	Zone 4a
smooth blue aster Symphyotrichum laeve	Wildflower (forb)	4 ft	Sun	Medium	Zone 3a
smooth hedgenettle Stachys tenuifolia	Wildflower (forb)	25 ft	Shade-tolerant	High	Zone 4a
smooth horsetail Equisetum laevigatum	Fern	5 ft	Sun	Low	Zone 3b
smooth phlox Phlox glaberrima	Wildflower (forb)	3 ft	Sun–part shade	High	Zone 4b
smooth sumac Rhus glabra	Tree	12 ft	Sun	Low	Zone 4a
softstem bulrush Schoenoplectus tabernaemontani	Grass or grass-like	9 ft	Sun	High	Zone 3b
southern arrowwood Viburnum dentatum	Tree	8 ft	Sun–part shade	—	Zone 5a
southern arrowwood Viburnum recognitum	Tree	9 ft	Shade-tolerant	Medium	Zone 4b
southern red oak Quercus falcata	Tree	75 ft	Sun–part shade	Medium	Zone 6a
southern sugar maple Acer floridanum	Tree	50 ft	Shade-tolerant	Medium	Zone 5b
southern waternymph Najas guadalupensis	Wildflower (forb)	1 ft	Sun	High	Zone 3b
spotted St. Johnswort Hypericum punctatum	Wildflower (forb)	3 ft	Shade-tolerant	Medium	Zone 4a
spring avens Geum vernum	Wildflower (forb)	1.6 ft	Shade-tolerant	Medium	Zone 5b
squarrose sedge Carex squarrosa	Grass or grass-like	3 ft	Shade-tolerant	Medium	Zone 4b
stalkless yellowcress Rorippa sessiliflora	Wildflower (forb)	1.5 ft	Sun–part shade	High	Zone 12b
star duckweed Lemna trisulca	Wildflower (forb)	4 in	Sun	High	Zone 3b
stiff dogwood Cornus foemina	Tree	16 ft	Sun–part shade	Medium	Zone 7a
stiff goldenrod Oligoneuron rigidum	Wildflower (forb)	3.6 ft	Sun–part shade	Medium	Zone 3a
stiff marsh bedstraw Galium tinctorium	Wildflower (forb)	10 in	Shade-tolerant	High	Zone 4a
strawcolored flatsedge Cyperus strigosus	Grass or grass-like	3.2 ft	Sun	Medium	Zone 4a
sugar maple Acer saccharum	Tree	100 ft	Shade-tolerant	Medium	Zone 2b
sugarberry Celtis laevigata	Tree	80 ft	Shade-tolerant	High	Zone 5a
summer grape Vitis aestivalis	Vine	30 ft	Shade-tolerant	Medium	Zone 5a
swamp chestnut oak Quercus michauxii	Tree	80 ft	Sun	Medium	Zone 5a
swamp cottonwood Populus heterophylla	Tree	100 ft	Sun	High	Zone 5a
swamp loosestrife Decodon verticillatus	Shrub	8 ft	Sun–part shade	High	Zone 5a
swamp milkweed Asclepias incarnata	Wildflower (forb)	4.9 ft	Sun	High	Zone 3b
swamp rose Rosa palustris	Shrub	8.2 ft	Shade-tolerant	Medium	Zone 4a
swamp smartweed Polygonum hydropiperoides	Wildflower (forb)	—	Sun	Medium	Zone 10b
swamp white oak Quercus bicolor	Tree	100 ft	Sun–part shade	High	Zone 4b
sweet woodreed Cinna arundinacea	Grass or grass-like	4.9 ft	Shade-tolerant	Low	Zone 4a
sweetgum Liquidambar styraciflua	Tree	100 ft	Sun	High	Zone 5a
switchgrass Panicum virgatum	Grass or grass-like	5 ft	Sun	Medium	Zone 3a
taperleaf water horehound Lycopus rubellus	Wildflower (forb)	1.6 ft	Shade-tolerant	High	Zone 5a
tapertip flatsedge Cyperus acuminatus	Grass or grass-like	1.3 ft	Sun–part shade	High	Zone 3b
tapertip rush Juncus acuminatus	Grass or grass-like	3 ft	Sun–part shade	High	Zone 4a
teal lovegrass Eragrostis hypnoides	Grass or grass-like	4 in	Sun	High	Zone 3b
three-way sedge Dulichium arundinaceum	Grass or grass-like	2.6 ft	Sun–part shade	High	Zone 3b
threelobe beggarticks Bidens tripartita	Wildflower (forb)	3.5 ft	Sun–part shade	High	Zone 12a
tiny mousetail Myosurus minimus	Wildflower (forb)	5 in	Sun–part shade	Medium	Zone 12b
trumpet creeper Campsis radicans	Vine	2 ft	Sun	Low	Zone 6a
tufted loosestrife Lysimachia thyrsiflora	Wildflower (forb)	2 ft	Sun–part shade	High	Zone 4a
tuliptree Liriodendron tulipifera	Tree	120 ft	Sun	Medium	Zone 5b
twisted sedge Carex torta	Grass or grass-like	2.8 ft	Shade-tolerant	Medium	Zone 4a
twoheaded water-starwort Callitriche heterophylla	Wildflower (forb)	—	Sun	High	Zone 4a
upland bentgrass Agrostis perennans	Grass or grass-like	3.5 ft	Sun–part shade	High	Zone 4a
valdivia duckweed Lemna valdiviana	Wildflower (forb)	1 in	Sun	High	Zone 4a
valley redstem Ammannia coccinea	Wildflower (forb)	1.6 ft	Sun	Medium	Zone 3b
variable panicgrass Dichanthelium commutatum	Grass or grass-like	4.9 ft	Sun–part shade	Low	Zone 4b
vernal water-starwort Callitriche palustris	Wildflower (forb)	10 in	Sun	Medium	Zone 4a
Virginia bluebells Mertensia virginica	Wildflower (forb)	2.3 ft	Shade-tolerant	High	Zone 4b
Virginia creeper Parthenocissus quinquefolia	Vine	1 ft	Sun–part shade	Low	Zone 4b
Virginia dayflower Commelina virginica	Wildflower (forb)	3.5 ft	Shade-tolerant	Medium	Zone 5b
Virginia iris Iris virginica	Wildflower (forb)	3.3 ft	Shade-tolerant	High	Zone 8b
Virginia spiderwort Tradescantia virginiana	Wildflower (forb)	1.1 ft	Sun–part shade	Medium	Zone 3b
Virginia sweetspire Itea virginica	Shrub	10 ft	Shade-tolerant	High	Zone 5a
Virginia threeseed mercury Acalypha virginica	Wildflower (forb)	3 ft	Sun–part shade	Medium	Zone 10b
Virginia water horehound Lycopus virginicus	Wildflower (forb)	4 ft	Shade-tolerant	High	Zone 4a
Virginia wildrye Elymus virginicus	Grass or grass-like	2.5 ft	Shade-tolerant	Medium	Zone 4b
water hickory Carya aquatica	Tree	85 ft	Sun–part shade	Medium	Zone 5b
water knotweed Polygonum amphibium	Wildflower (forb)	1 in	Sun	High	Zone 5a
water locust Gleditsia aquatica	Tree	40 ft	Sun–part shade	—	Zone 10a
water tupelo Nyssa aquatica	Tree	100 ft	Sun	High	Zone 5a
waterthread pondweed Potamogeton diversifolius	Wildflower (forb)	3.2 ft	Sun	High	Zone 3b
white ash Fraxinus americana	Tree	90 ft	Sun	High	Zone 4a
white avens Geum canadense	Wildflower (forb)	3.9 ft	Shade-tolerant	Medium	Zone 4a
white doll's daisy Boltonia asteroides	Wildflower (forb)	8 ft	Sun–part shade	Medium	Zone 3b
white oak Quercus alba	Tree	100 ft	Sun–part shade	Medium	Zone 3a
white panicle aster Symphyotrichum lanceolatum	Wildflower (forb)	6 ft	Sun–part shade	High	Zone 3b
white prairie clover Dalea candida	Wildflower (forb)	2 ft	Sun–part shade	Medium	Zone 3b
whitegrass Leersia virginica	Grass or grass-like	3.9 ft	Shade-tolerant	Medium	Zone 3a
whiteroot rush Juncus brachycarpus	Grass or grass-like	3 ft	Sun–part shade	Medium	Zone 5a
wild bergamot Monarda fistulosa	Wildflower (forb)	4.9 ft	Sun–part shade	High	Zone 4a
wild blue phlox Phlox divaricata	Wildflower (forb)	3 ft	Sun–part shade	Medium	Zone 4a
willow oak Quercus phellos	Tree	100 ft	Sun	High	Zone 5a
winged elm Ulmus alata	Tree	65 ft	Shade-tolerant	Medium	Zone 5b
winged sumac Rhus copallinum	Tree	8 ft	Sun	Low	Zone 4b
wingleaf primrose-willow Ludwigia decurrens	Wildflower (forb)	4.5 ft	Shade-tolerant	High	Zone 8a
winter bentgrass Agrostis hyemalis	Grass or grass-like	3.5 ft	Sun–part shade	High	Zone 4a
wirestem muhly Muhlenbergia frondosa	Grass or grass-like	2 ft	Shade-tolerant	Medium	Zone 3b
woodland bluegrass Poa sylvestris	Grass or grass-like	3 ft	Shade-tolerant	High	Zone 4a
woodland muhly Muhlenbergia sylvatica	Grass or grass-like	3 ft	Sun–part shade	Medium	Zone 4b
woolgrass Scirpus cyperinus	Grass or grass-like	4.9 ft	Sun–part shade	High	Zone 4a
wreath goldenrod Solidago caesia	Wildflower (forb)	3 ft	Sun–part shade	Medium	Zone 4b
wrinkleleaf goldenrod Solidago rugosa	Wildflower (forb)	3.3 ft	Sun–part shade	Medium	Zone 4a
yellow flatsedge Cyperus flavescens	Grass or grass-like	2 ft	Sun	Medium	Zone 11b
yellow fumewort Corydalis flavula	Wildflower (forb)	1.5 ft	Sun–part shade	Medium	Zone 5b
yellow passionflower Passiflora lutea	Vine	16 ft	Shade-tolerant	Low	Zone 5a
zigzag goldenrod Solidago flexicaulis	Wildflower (forb)	3 ft	Sun–part shade	Medium	Zone 5b

Other native species recorded here 616

PLANTS has no growing records for these, so light, moisture, height and zone filters cannot include them. Many are wild species seldom sold by nurseries.

Adam and Eve Aplectrum hyemale
Allegheny monkeyflower Mimulus ringens
amberique-bean Strophostyles helvola
American alumroot Heuchera americana
American bladdernut Staphylea trifolia
American buckwheat vine Brunnichia ovata
American burnweed Erechtites hieraciifolius
American columbo Frasera caroliniensis
American false pennyroyal Hedeoma pulegioides
American featherfoil Hottonia inflata
American ginseng Panax quinquefolius
American hogpeanut Amphicarpaea bracteata
American ipecac Gillenia stipulata
American lopseed Phryma leptostachya
American senna Senna hebecarpa
American spikenard Aralia racemosa
American stoneseed Lithospermum latifolium
American white waterlily Nymphaea odorata
anglestem primrose-willow Ludwigia leptocarpa
angularfruit milkvine Matelea gonocarpos
annual marsh elder Iva annua
Apocynum ×floribundum Apocynum ×floribundum
aquatic milkweed Asclepias perennis
aromatic aster Symphyotrichum oblongifolium
arrowfeather threeawn Aristida purpurascens
arrowhead rattlebox Crotalaria sagittalis
arrowleaf violet Viola sagittata
ashy sunflower Helianthus mollis
Atlantic goldenrod Solidago arguta
Atlantic pigeonwings Clitoria mariana
Aunt Lucy Ellisia nyctelea
autumn coralroot Corallorhiza odontorhiza
autumn onion Allium stellatum
beach false foxglove Agalinis fasciculata
beaked cornsalad Valerianella radiata
beaked panicgrass Panicum anceps
bearded flatsedge Cyperus squarrosus
bearded shorthusk Brachyelytrum erectum
beechdrops Epifagus virginiana
biennial beeblossom Oenothera gaura
big devils beggartick Bidens vulgata
bigbract verbena Verbena bracteata
bigseed alfalfa dodder Cuscuta indecora
birdfoot violet Viola pedata
blackfoot quillwort Isoetes melanopoda
blackseed plantain Plantago rugelii
blackstem spleenwort Asplenium resiliens
blisterwort Ranunculus recurvatus
bloodroot Sanguinaria canadensis
bloody butcher Trillium recurvatum
blue ash Fraxinus quadrangulata
blue mudplantain Heteranthera limosa
Blue Ridge blueberry Vaccinium pallidum
blue sedge Carex glaucodea
blue skullcap Scutellaria lateriflora
blue waxweed Cuphea viscosissima
bluejacket Tradescantia ohiensis
bluntleaf waterleaf Hydrophyllum canadense
bluntlobe cliff fern Woodsia obtusa
bog yellowcress Rorippa palustris
Bosc's panicgrass Dichanthelium boscii
bottlebrush sedge Carex hystericina
bottomland aster Symphyotrichum ontarionis
box knotweed Polygonum buxiforme
Bradley's spleenwort Asplenium bradleyi
branched bur-reed Sparganium androcladum
Brazilian watermeal Wolffia brasiliensis
bristleleaf sedge Carex eburnea
bristly greenbrier Smilax tamnoides
brittle bladderfern Cystopteris fragilis
broad beechfern Phegopteris hexagonoptera
broad looseflower sedge Carex laxiflora
brook cinquefoil Potentilla rivalis
brown widelip orchid Liparis liliifolia
browneyed Susan Rudbeckia triloba
bulblet bladderfern Cystopteris bulbifera
bulblet-bearing water hemlock Cicuta bulbifera
bushy knotweed Polygonum ramosissimum
buttonbush dodder Cuscuta cephalanthi
camphor pluchea Pluchea camphorata
camphorweed Heterotheca subaxillaris
Canada lettuce Lactuca canadensis
Canadian blacksnakeroot Sanicula canadensis
Canadian clearweed Pilea pumila
Canadian honewort Cryptotaenia canadensis
Canadian summer bluet Houstonia canadensis
Canadian wildginger Asarum canadense
Canadian woodnettle Laportea canadensis
Carey's sedge Carex careyana
Carolina geranium Geranium carolinianum
Carolina horsenettle Solanum carolinense
Carolina sedge Carex caroliniana
carpenter's square Scrophularia marilandica
celandine poppy Stylophorum diphyllum
Chapman's bluegrass Poa chapmaniana
Christmas fern Polystichum acrostichoides
churchmouse threeawn Aristida dichotoma
clammy groundcherry Physalis heterophylla
clammy hedgehyssop Gratiola neglecta
clasping milkweed Asclepias amplexicaulis
clasping Venus' looking-glass Triodanis perfoliata
Clayton's sweetroot Osmorhiza claytonii
climbing dogbane Trachelospermum difforme
climbing false buckwheat Polygonum scandens
clustered blacksnakeroot Sanicula odorata
clustered fescue Festuca paradoxa
Columbian watermeal Wolffia columbiana
common bladderwort Utricularia macrorhiza
common boneset Eupatorium perfoliatum
common cinquefoil Potentilla simplex
common dittany Cunila origanoides
common milkweed Asclepias syriaca
common moonseed Menispermum canadense
common pricklyash Zanthoxylum americanum
common threeseed mercury Acalypha rhomboidea
common woodrush Luzula multiflora
common yellow oxalis Oxalis stricta
compact dodder Cuscuta compacta
Copenhagen hawthorn Crataegus intricata
cream avens Geum virginianum
creeping burhead Echinodorus cordifolius
creeping lespedeza Lespedeza repens
crippled cranefly Tipularia discolor
crossvine Bignonia capreolata
crowpoison Nothoscordum bivalve
Culver's root Veronicastrum virginicum
curlytop knotweed Polygonum lapathifolium
cusp dodder Cuscuta cuspidata
cutleaf evening primrose Oenothera laciniata
cutleaf grapefern Botrychium dissectum
cutleaf toothwort Cardamine concatenata
cypress panicgrass Dichanthelium dichotomum
densetuft hairsedge Bulbostylis capillaris
diamond-flowers Stenaria nigricans
Dillenius' ticktrefoil Desmodium glabellum
dogtooth violet Erythronium americanum
dotted hawthorn Crataegus punctata
downy carrionflower Smilax pulverulenta
downy hawthorn Crataegus mollis
downy lobelia Lobelia puberula
downy pagoda-plant Blephilia ciliata
downy phlox Phlox pilosa
downy ragged goldenrod Solidago petiolaris
downy rattlesnake plantain Goodyera pubescens
Drummond's aster Symphyotrichum drummondii
Dudley's rush Juncus dudleyi
dutchman's breeches Dicentra cucullaria
dwarf crested iris Iris cristata
dwarf hackberry Celtis pumila
dwarf horseweed Conyza ramosissima
dwarf larkspur Delphinium tricorne
dwarf plantain Plantago pusilla
early azalea Rhododendron prinophyllum
early buttercup Ranunculus fascicularis
early goldenrod Solidago juncea
early meadow-rue Thalictrum dioicum
early wildrye Elymus macgregorii
earth loosestrife Lysimachia terrestris
eastern blue-eyed grass Sisyrinchium atlanticum
eastern bluestar Amsonia tabernaemontana
eastern bottlebrush grass Elymus hystrix
eastern false rue anemone Enemion biternatum
eastern featherbells Stenanthium gramineum
eastern greenviolet Hybanthus concolor
eastern milkpea Galactia regularis
eastern poison ivy Toxicodendron radicans
eastern prickly gooseberry Ribes cynosbati
eastern swamp saxifrage Saxifraga pensylvanica
ebony spleenwort Asplenium platyneuron
Elliott's bentgrass Agrostis elliottiana
Elliott's bluestem Andropogon gyrans
elmleaf goldenrod Solidago ulmifolia
Engelmann's hawthorn Crataegus engelmannii
Equisetum ×ferrissii Equisetum ×ferrissii
erect knotweed Polygonum erectum
fall phlox Phlox paniculata
false aloe Manfreda virginica
false hop sedge Carex lupuliformis
feathery false lily of the valley Maianthemum racemosum
fernleaf phacelia Phacelia bipinnatifida
feverwort Triosteum perfoliatum
fewflower nutrush Scleria pauciflora
fewflower ticktrefoil Desmodium pauciflorum
fewleaf sunflower Helianthus occidentalis
field pansy Viola bicolor
field thistle Cirsium discolor
fire on the mountain Euphorbia cyathophora
fiveangled dodder Cuscuta pentagona
floating mannagrass Glyceria septentrionalis
floating primrose-willow Ludwigia peploides
Florida mudmidget Wolffiella gladiata
flowering spurge Euphorbia corollata
fluxweed Trichostema brachiatum
forked bluecurls Trichostema dichotomum
fourleaf milkweed Asclepias quadrifolia
fourleaf yam Dioscorea quaternata
fragrant bedstraw Galium triflorum
fragrant sumac Rhus aromatica
fringed loosestrife Lysimachia ciliata
fuzzy wuzzy sedge Carex hirsutella
Gattinger's panicgrass Panicum gattingeri
giant ironweed Vernonia gigantea
giant sedge Carex gigantea
glade fern Diplazium pycnocarpon
globe flatsedge Cyperus echinatus
goldenseal Hydrastis canadensis
Goldie's woodfern Dryopteris goldieana
grand redstem Ammannia robusta
gravelweed Verbesina helianthoides
great blue lobelia Lobelia siphilitica
great Indian plantain Arnoglossum reniforme
great ragweed Ambrosia trifida
great waterleaf Hydrophyllum appendiculatum
greater marsh St. Johnswort Triadenum walteri
Greek valerian Polemonium reptans
green carpetweed Mollugo verticillata
green comet milkweed Asclepias viridiflora
green dragon Arisaema dracontium
grooved flax Linum sulcatum
Guadeloupe cucumber Melothria pendula
hairy beardtongue Penstemon hirsutus
hairy bedstraw Galium pilosum
hairy evening primrose Oenothera villosa
hairy forked nailwort Paronychia fastigiata
hairy goldenrod Solidago hispida
hairy hedgenettle Stachys pilosa
hairy lipfern Cheilanthes lanosa
hairy pagoda-plant Blephilia hirsuta
hairy skullcap Scutellaria elliptica
hairy small-leaf ticktrefoil Desmodium ciliare
hairy sunflower Helianthus hirsutus
hairy wildrye Elymus villosus
hairy woodland brome Bromus pubescens
hairyfruit chervil Chaerophyllum tainturieri
hairyseed paspalum Paspalum pubiflorum
harbinger of spring Erigenia bulbosa
heartleaf nettle Urtica chamaedryoides
heartleaf skullcap Scutellaria ovata
heavy sedge Carex gravida
hedge false bindweed Calystegia sepium
hedgehog woodrush Luzula echinata
Heller's rosette grass Dichanthelium oligosanthes
hemlock waterparsnip Sium suave
hoary mountainmint Pycnanthemum incanum
hoary puccoon Lithospermum canescens
hoary skullcap Scutellaria incana
hoary ticktrefoil Desmodium canescens
hoary verbena Verbena stricta
hogwort Croton capitatus
honeyvine Cynanchum laeve
hooded arrowhead Sagittaria calycina
hortulan plum Prunus hortulana
humped bladderwort Utricularia gibba
hyssopleaf hedgenettle Stachys aspera
hyssopleaf hedgenettle Stachys hyssopifolia
Illinois ticktrefoil Desmodium illinoense
Indian-tobacco Lobelia inflata
Indianpipe Monotropa uniflora
inflated narrow-leaf sedge Carex grisea
intermediate woodfern Dryopteris intermedia
James' sedge Carex jamesii
jumpseed Polygonum virginianum
kidneyleaf mudplantain Heteranthera reniformis
knotsheath sedge Carex retrorsa
lace grass Eragrostis capillaris
lakecress Neobeckia aquatica
lanceleaf fogfruit Phyla lanceolata
lanceleaf ragweed Ambrosia bidentata
largebract ticktrefoil Desmodium cuspidatum
largebracted plantain Plantago aristata
largeflower bellwort Uvularia grandiflora
largeseed forget-me-not Myosotis macrosperma
lateflowering thoroughwort Eupatorium serotinum
Leiberg's panicum Dichanthelium leibergii
lemonyellow false goldenaster Heterotheca camporum
lesser clearweed Pilea fontana
lesser duckweed Lemna aequinoctialis
lesser yellow lady's slipper Cypripedium parviflorum
licorice bedstraw Galium circaezans
limestone adderstongue Ophioglossum engelmannii
lined sedge Carex striatula
little duckweed Lemna obscura
little lady's tresses Spiranthes tuberosa
lizard's tail Saururus cernuus
lobed spleenwort Asplenium pinnatifidum
longbeak arrowhead Sagittaria australis
longleaf groundcherry Physalis longifolia
longleaf summer bluet Houstonia longifolia
longsepal beardtongue Penstemon calycosus
longstyle sweetroot Osmorhiza longistylis
Louisiana sedge Carex louisianica
low spearwort Ranunculus pusillus
low spikesedge Kyllinga pumila
low woodland sedge Carex socialis
lowland bladderfern Cystopteris protrusa
lowland rotala Rotala ramosior
lowland yellow loosestrife Lysimachia hybrida
Lucretia dewberry Rubus roribaccus
lyreleaf sage Salvia lyrata
maidenhair spleenwort Asplenium trichomanes
man of the earth Ipomoea pandurata
mapleleaf goosefoot Chenopodium simplex
marginal woodfern Dryopteris marginalis
marsh mermaidweed Proserpinaca palustris
mat sandbur Cenchrus longispinus
matted sandmat Chamaesyce serpens
mayapple Podophyllum peltatum
Mead's sedge Carex meadii
meadow garlic Allium canadense
meadow spikemoss Selaginella apoda
Mexican Mosquito Fern Azolla microphylla
Mexican plum Prunus mexicana
Miami mist Phacelia purshii
Michaux's croton Croton michauxii
Michigan lily Lilium michiganense
minute duckweed Lemna perpusilla
Missouri violet Viola missouriensis
mucronate sprangletop Leptochloa panicea
Muhlenberg's sedge Carex muehlenbergii
mullein foxglove Dasistoma macrophylla
nakedflower ticktrefoil Desmodium nudiflorum
narrowleaf mountainmint Pycnanthemum tenuifolium
narrowleaf paleseed Leucospora multifida
narrowleaf pinweed Lechea tenuifolia
narrowleaf vervain Verbena simplex
neckweed Veronica peregrina
New England aster Symphyotrichum novae-angliae
nits and lice Hypericum drummondii
nodding chickweed Cerastium nutans
nodding muhly Muhlenbergia bushii
nodding wakerobin Trillium flexipes
northern adderstongue Ophioglossum pusillum
northern bog violet Viola nephrophylla
northern dewberry Rubus flagellaris
northern selaginella Selaginella rupestris
northern slender lady's tresses Spiranthes lacera
northern wildrice Zizania palustris
Nuttall's prairie parsley Polytaenia nuttallii
Nuttall's ticktrefoil Desmodium nuttallii
oak mistletoe Phoradendron leucarpum
obedient plant Physostegia virginiana
obovate beakgrain Diarrhena obovata
October lady's tresses Spiranthes ovalis
oneflowered broomrape Orobanche uniflora
oneseed bur cucumber Sicyos angulatus
Ontario blazing star Liatris cylindracea
openflower rosette grass Dichanthelium laxiflorum
orange coneflower Rudbeckia fulgida
orangefruit horse-gentian Triosteum aurantiacum
pale beardtongue Penstemon pallidus
pale dock Rumex altissimus
pale false mannagrass Torreyochloa pallida
pale Indian plantain Arnoglossum atriplicifolium
paleleaf woodland sunflower Helianthus strumosus
palespike lobelia Lobelia spicata
parasol sedge Carex umbellata
Parlin's pussytoes Antennaria parlinii
pear hawthorn Crataegus calpodendron
Pennsylvania pellitory Parietaria pensylvanica
Pennsylvania sedge Carex pensylvanica
Philadelphia panicgrass Panicum philadelphicum
pineland threeseed mercury Acalypha ostryifolia
pinesap Monotropa hypopitys
pink fuzzybean Strophostyles umbellata
pink thoroughwort Fleischmannia incarnata
pleatleaf knotweed Polygonum tenue
pointedleaf ticktrefoil Desmodium glutinosum
poke milkweed Asclepias exaltata
poorjoe Diodia teres
potato dwarfdandelion Krigia dandelion
poverty dropseed Sporobolus vaginiflorus
poverty oatgrass Danthonia spicata
prairie cupgrass Eriochloa contracta
prairie groundcherry Physalis hispida
prairie groundsel Packera plattensis
prairie ironweed Vernonia fasciculata
prairie tea Croton monanthogynus
prairie threeawn Aristida oligantha
prostrate ticktrefoil Desmodium rotundifolium
pubescent sedge Carex hirtifolia
puffsheath dropseed Sporobolus neglectus
purple cliffbrake Pellaea atropurpurea
purple false foxglove Agalinis purpurea
purple fringeless orchid Platanthera peramoena
purple meadowparsnip Thaspium trifoliatum
purple milkweed Asclepias purpurascens
purple milkwort Polygala sanguinea
purple passionflower Passiflora incarnata
queendevil Hieracium gronovii
rabbit-tobacco Pseudognaphalium obtusifolium
Ravenel's rosette grass Dichanthelium ravenelii
red columbine Aquilegia canadensis
red hickory Carya ovalis
redring milkweed Asclepias variegata
redwhisker clammyweed Polanisia dodecandra
reflexed sedge Carex retroflexa
ribbed sedge Carex virescens
richweed Collinsonia canadensis
richwoods sedge Carex oligocarpa
robin's plantain Erigeron pulchellus
rock buttercup Ranunculus micranthus
rock muhly Muhlenbergia sobolifera
rock polypody Polypodium virginianum
rose mock vervain Glandularia canadensis
rosepink Sabatia angularis
rosy sedge Carex rosea
rough barnyardgrass Echinochloa muricata
rough false pennyroyal Hedeoma hispida
roundfruit hedgehyssop Gratiola virginiana
roundleaf ragwort Packera obovata
roundseed panicgrass Dichanthelium sphaerocarpon
roundseed St. Johnswort Hypericum sphaerocarpum
roundstem false foxglove Agalinis gattingeri
rue anemone Thalictrum thalictroides
rusty blackhaw Viburnum rufidulum
s-curve threeawn Aristida ramosissima
Sampson's snakeroot Orbexilum pedunculatum
sand bittercress Cardamine parviflora
sand hickory Carya pallida
sand violet Viola affinis
scaldweed Cuscuta gronovii
scaly blazing star Liatris squarrosa
seaside threeawn Aristida tuberculosa
seedbox Ludwigia alternifolia
sensitive fern Onoclea sensibilis
sensitive partridge pea Chamaecrista nictitans
sessilefruit arrowhead Sagittaria rigida
sessileleaf bellwort Uvularia sessilifolia
sessileleaf ticktrefoil Desmodium sessilifolium
sharpscale sedge Carex oxylepis
shining bedstraw Galium concinnum
shiny wedgescale Sphenopholis nitida
Short's aster Symphyotrichum shortii
shortpod draba Draba brachycarpa
shortstalk chickweed Cerastium brachypodum
showy orchid Galearis spectabilis
showy ticktrefoil Desmodium canadense
shrubby lespedeza Lespedeza frutescens
sicklepod Arabis canadensis
sidebeak pencilflower Stylosanthes biflora
silky dogwood Cornus obliqua
silver false spleenwort Deparia acrostichoides
silver plumegrass Saccharum alopecuroides
sixweeks fescue Vulpia octoflora
skyblue aster Symphyotrichum oolentangiense
sleepy silene Silene antirrhina
slender fimbry Fimbristylis autumnalis
slender lespedeza Lespedeza virginica
slender lipfern Cheilanthes feei
slender looseflower sedge Carex gracilescens
slender plantain Plantago heterophylla
slender snakecotton Froelichia gracilis
slender threeseed mercury Acalypha gracilens
slender wedgescale Sphenopholis intermedia
slender woodland sedge Carex digitalis
slender yellow woodsorrel Oxalis dillenii
slenderleaf false foxglove Agalinis tenuifolia
slickseed fuzzybean Strophostyles leiosperma
slimflower muhly Muhlenbergia tenuiflora
slimleaf panicgrass Dichanthelium linearifolium
slimspike threeawn Aristida longespica
small pondweed Potamogeton pusillus
small skullcap Scutellaria parvula
small Venus' looking-glass Triodanis biflora
small woodland sunflower Helianthus microcephalus
smallflower false foxglove Agalinis paupercula
smallflower halfchaff sedge Lipocarpha micrantha
smallhead doll's daisy Boltonia diffusa
smartweed dodder Cuscuta polygonorum
smooth cliffbrake Pellaea glabella
smooth false buttonweed Spermacoce glabra
smooth forked nailwort Paronychia canadensis
smooth oxeye Heliopsis helianthoides
smooth rockcress Arabis laevigata
smooth rose Rosa blanda
smooth small-leaf ticktrefoil Desmodium marilandicum
smooth Solomon's seal Polygonatum biflorum
smooth ticktrefoil Desmodium laevigatum
smooth yellow false foxglove Aureolaria flava
smoothsheath sedge Carex laevivaginata
soft agrimony Agrimonia pubescens
soft fox sedge Carex conjuncta
soft-hair marbleseed Onosmodium bejariense
southern dewberry Rubus trivialis
southern mountainmint Pycnanthemum pycnanthemoides
Spanish gold Grindelia papposa
Spanish needles Bidens bipinnata
sparselobe grapefern Botrychium biternatum
spineless hornwort Ceratophyllum echinatum
spinulose woodfern Dryopteris carthusiana
spleenwort Asplenium ×ebenoides
spleenwort Asplenium ×gravesii
spoonleaf purple everlasting Gamochaeta purpurea
spotted geranium Geranium maculatum
spotted sandmat Chamaesyce maculata
spotted water hemlock Cicuta maculata
spreading chervil Chaerophyllum procumbens
spreading dogbane Apocynum androsaemifolium
spreading sandmat Chamaesyce humistrata
spring blue eyed Mary Collinsia verna
spring coralroot Corallorhiza wisteriana
spring forget-me-not Myosotis verna
spring lady's tresses Spiranthes vernalis
squirrel corn Dicentra canadensis
St. Andrew's cross Hypericum hypericoides
stalked wild petunia Ruellia pedunculata
Standley's goosefoot Chenopodium standleyanum
starved panicgrass Dichanthelium depauperatum
stiff sunflower Helianthus pauciflorus
stiff tickseed Coreopsis palmata
stiff ticktrefoil Desmodium obtusum
stiff yellow flax Linum medium
strawberry-tomato Physalis grisea
striped cream violet Viola striata
sunbright Phemeranthus parviflorus
swamp dock Rumex verticillatus
swamp verbena Verbena hastata
sweetscented joe pye weed Eutrochium purpureum
tall blazing star Liatris aspera
tall blue lettuce Lactuca biennis
tall rattlesnakeroot Prenanthes altissima
tall thimbleweed Anemone virginiana
tall thistle Cirsium altissimum
tall thoroughwort Eupatorium altissimum
tall tickseed Coreopsis tripteris
tapertip cupgrass Eriochloa acuminata
Tennessee bladderfern Cystopteris tennesseensis
terrestrial water-starwort Callitriche terrestris
Texas sedge Carex texensis
Texas toadflax Nuttallanthus texanus
thicket bean Phaseolus polystachios
thin paspalum Paspalum setaceum
thinleaf sedge Carex cephaloidea
thinleaf sunflower Helianthus decapetalus
threadleaf evening primrose Oenothera linifolia
three-lobe violet Viola triloba
threeflower melicgrass Melica nitens
tiny bluet Houstonia pusilla
toadshade Trillium sessile
tower rockcress Arabis glabra
trailing lespedeza Lespedeza procumbens
trailing pearlwort Sagina decumbens
tufted lovegrass Eragrostis pectinacea
twoflower dwarfdandelion Krigia biflora
twoflower melicgrass Melica mutica
upland boneset Eupatorium sessilifolium
upright burhead Echinodorus berteroi
veiny skullcap Scutellaria nervosa
Venus' pride Houstonia purpurea
violet lespedeza Lespedeza violacea
violet woodsorrel Oxalis violacea
Virginia buttonweed Diodia virginiana
Virginia dwarfdandelion Krigia virginica
Virginia groundcherry Physalis virginiana
Virginia pennywort Obolaria virginica
Virginia pepperweed Lepidium virginicum
Virginia plantain Plantago virginica
Virginia snakeroot Aristolochia serpentaria
Virginia springbeauty Claytonia virginica
Virginia strawberry Fragaria virginiana
Virginia tephrosia Tephrosia virginiana
Virginia winged rockcress Sibara virginica
walking fern Asplenium rhizophyllum
warty spurge Euphorbia spathulata
waterpurslane Didiplis diandra
watershield Brasenia schreberi
waxyfruit hawthorn Crataegus pruinosa
waxyleaf meadow-rue Thalictrum revolutum
western rockjasmine Androsace occidentalis
western rough goldenrod Solidago radula
western tansymustard Descurainia pinnata
western waterweed Elodea nuttallii
white arrowleaf aster Symphyotrichum urophyllum
white baneberry Actaea pachypoda
white bear sedge Carex albursina
white bergamot Monarda clinopodia
white blue-eyed grass Sisyrinchium albidum
white fawnlily Erythronium albidum
white goldenrod Solidago bicolor
white heath aster Symphyotrichum ericoides
white rattlesnakeroot Prenanthes alba
white snakeroot Ageratina altissima
white vervain Verbena urticifolia
white wand beardtongue Penstemon tubaeflorus
whiteflower leafcup Polymnia canadensis
whitehair rosette grass Dichanthelium villosissimum
whitemouth dayflower Commelina erecta
whitestar Ipomoea lacunosa
whitetinge sedge Carex albicans
wholeleaf rosinweed Silphium integrifolium
whorled milkweed Asclepias verticillata
whorled mountainmint Pycnanthemum verticillatum
widowsfrill Silene stellata
wild comfrey Cynoglossum virginianum
wild goose plum Prunus munsoniana
wild hydrangea Hydrangea arborescens
wild yam Dioscorea villosa
Willdenow's sedge Carex willdenowii
willowleaf aster Symphyotrichum praealtum
winged lythrum Lythrum alatum
winged pigweed Cycloloma atriplicifolium
wingstem Verbesina alternifolia
wiry panicgrass Panicum flexile
witchgrass Panicum capillare
woman's tobacco Antennaria plantaginifolia
woodland flax Linum virginianum
woodland lettuce Lactuca floridana
woodland pinkroot Spigelia marilandica
woodland stonecrop Sedum ternatum
woodland sunflower Helianthus divaricatus
yellow giant hyssop Agastache nepetoides
yellow pimpernel Taenidia integerrima
yellow water buttercup Ranunculus flabellaris
yellowfruit horse-gentian Triosteum angustifolium
yellowseed false pimpernel Lindernia dubia
zigzag spiderwort Tradescantia subaspera

Also listed as native and introduced here 4

PLANTS labels these species both native and introduced in this state: some forms are native and others were brought in from elsewhere. Most gardeners should choose plants from the main list.

American red raspberryRubus idaeus
annual ragweedAmbrosia artemisiifolia
bride's feathersAruncus dioicus
Kentucky bluegrassPoa pratensis

Compared with Illinois

The typical county is the median of the 102 Illinois counties with PLANTS county records; the statewide figure counts every species native anywhere in the state. More species is not better or worse: counties differ in size, habitat and how thoroughly they have been surveyed.

Native species counts, Union County and Illinois
Measure	Union County	Typical county	Statewide
Native species	1,000	641	1,909
Garden-ready natives	384	272	652
Tree	116	—	187
Shrub	29	—	96
Wildflower (forb)	563	—	1,015
Grass or grass-like	198	—	444
Vine	52	—	79
Fern	42	—	88

Neighboring counties

Counties that share a ZIP code with Union County.

Alexander County, IL 327 garden-ready
Jackson County, IL 419 garden-ready
Johnson County, IL 357 garden-ready
Pulaski County, IL 292 garden-ready
Williamson County, IL 323 garden-ready

Source & data date

Source: USDA NRCS PLANTS Database: county distribution records, native status and plant characteristics. CC0 (public domain dedication, per the data.gov catalog record).; Kew’s World Checklist of Vascular Plants (WCVP): native or introduced status by state. CC BY 3.0.; USGS US-RIIS (ver. 2.0): species listed as introduced are excluded. CC0.
Citation: USDA, NRCS. 2026. The PLANTS Database (https://plants.usda.gov, 11/04/2026). National Plant Data Team, Greensboro, NC USA.; Govaerts R. (ed.) (2026). WCVP: World Checklist of Vascular Plants. Facilitated by the Royal Botanic Gardens, Kew. Data file dated 2026-06-04, http://sftp.kew.org/pub/data-repositories/WCVP/ (retrieved 2026-11-04). Paper: Govaerts R. et al. (2021) The World Checklist of Vascular Plants, a continuously updated resource for exploring global plant diversity. Scientific Data 8, 215.
Data date: Retrieved from PLANTS on November 4, 2026; WCVP data file dated June 4, 2026.
Zones: USDA Plant Hardiness Zone Map (2023) ZIP table: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed November 3, 2026. Plant zones on this site are our estimate, not the official map.
Scope: Union County (county FIPS 17181), Illinois. 1,000 native species from PLANTS county distribution records; garden-ready = species with a PLANTS characteristics record.
Method: A species is listed when it is recorded as native to the state in Kew’s World Checklist of Vascular Plants and USDA PLANTS, and recorded in the county by USDA PLANTS. Species PLANTS labels both native and introduced are listed separately. Full method · All sources

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