Native plants · Indiana

Native plants of Washington County

513 plant species are recorded as native to Indiana in Kew’s World Checklist of Vascular Plants and USDA PLANTS, and recorded in Washington County by USDA PLANTS. 201 of them have growing records you can filter by light, moisture, height and estimated cold hardiness.

County summary · USDA PLANTS and Kew WCVP

Washington County, Indiana

Native species: 513 Typical Indiana county: 494 (median of 92 counties)
Garden-ready natives: 201 Typical Indiana county: 211
Share by type (all 513 native species): Percent of the 513 native species in each growth type

Tree 12% (62)
Shrub 3% (16)
Wildflower (forb) 59% (305)
Grass or grass-like 17% (86)
Vine 5% (24)
Fern 4% (20)

Wildflowers make up the largest share of the native list (59%), followed by grasses and grass-like plants (17%).

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 6b (2023 map).

The native plant list

Garden-ready natives 201

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

Garden-ready native plants of Washington County, Indiana
Plant	Type	Height	Light	Water use	Hardy to
alternateleaf dogwood Cornus alternifolia	Tree	25 ft	Shade-tolerant	Medium	Zone 2b
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 chestnut Castanea dentata	Tree	115 ft	Sun	Medium	Zone 4a
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 hornbeam Carpinus caroliniana	Tree	30 ft	Shade-tolerant	Medium	Zone 4a
American pokeweed Phytolacca americana	Wildflower (forb)	7.3 ft	Shade-tolerant	Medium	Zone 4a
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 witchhazel Hamamelis virginiana	Tree	20 ft	Sun–part shade	Medium	Zone 4b
arctic brome Bromus kalmii	Grass or grass-like	3 ft	Shade-tolerant	Low	Zone 4a
arrowleaf tearthumb Polygonum sagittatum	Vine	1 ft	Sun	Medium	Zone 6a
awlfruit sedge Carex stipata	Grass or grass-like	3.5 ft	Shade-tolerant	Medium	Zone 3b
beaked agrimony Agrimonia rostellata	Wildflower (forb)	2.3 ft	Sun–part shade	Medium	Zone 4a
bigtooth aspen Populus grandidentata	Tree	65 ft	Sun	High	Zone 3a
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 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
blackhaw Viburnum prunifolium	Tree	16 ft	Shade-tolerant	Medium	Zone 4a
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
bristly buttercup Ranunculus hispidus	Wildflower (forb)	2.5 ft	Shade-tolerant	Medium	Zone 4a
burningbush Euonymus atropurpureus	Tree	10 ft	Shade-tolerant	Low	—
butterfly milkweed Asclepias tuberosa	Wildflower (forb)	2 ft	Sun	Low	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 goldenrod Solidago altissima	Wildflower (forb)	5 ft	Sun–part shade	Medium	Zone 4b
Canadian horseweed Conyza canadensis	Wildflower (forb)	5 ft	Sun	Medium	Zone 12b
Canadian lousewort Pedicularis canadensis	Wildflower (forb)	1.3 ft	Shade-tolerant	Medium	Zone 3a
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 rose Rosa carolina	Shrub	5 ft	Sun–part shade	Low	Zone 3a
cat greenbrier Smilax glauca	Vine	1 ft	Shade-tolerant	Medium	Zone 6a
chestnut oak Quercus montana	Tree	73 ft	Sun–part shade	Medium	Zone 4a
chinquapin oak Quercus muehlenbergii	Tree	70 ft	Sun	Medium	Zone 4a
climbing rose Rosa setigera	Vine	16 ft	Sun	Low	Zone 6a
closed bottle gentian Gentiana andrewsii	Wildflower (forb)	2 ft	Sun–part shade	Medium	Zone 3b
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 evening primrose Oenothera biennis	Wildflower (forb)	5 ft	Sun	Medium	Zone 4b
common hackberry Celtis occidentalis	Tree	60 ft	Shade-tolerant	Low	Zone 2b
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 sneezeweed Helenium autumnale	Wildflower (forb)	4.9 ft	Sun	Medium	Zone 3a
common spikerush Eleocharis palustris	Grass or grass-like	1.3 ft	Sun	High	Zone 3b
coralberry Symphoricarpos orbiculatus	Shrub	2 ft	Sun–part shade	High	Zone 5a
cucumber tree Magnolia acuminata	Tree	100 ft	Sun–part shade	High	Zone 5b
cutleaf coneflower Rudbeckia laciniata	Wildflower (forb)	8.2 ft	Shade-tolerant	Low	Zone 3b
deerberry Vaccinium stamineum	Shrub	16 ft	Shade-tolerant	Low	Zone 5a
devil's beggartick Bidens frondosa	Wildflower (forb)	4 ft	Sun–part shade	Medium	Zone 12a
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
downy yellow violet Viola pubescens	Wildflower (forb)	1.3 ft	Shade-tolerant	Medium	Zone 4a
drooping sedge Carex prasina	Grass or grass-like	2.3 ft	Shade-tolerant	Medium	Zone 4b
dwarf St. Johnswort Hypericum mutilum	Wildflower (forb)	2.6 ft	Sun–part shade	Medium	Zone 5a
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 straw sedge Carex straminea	Grass or grass-like	3 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
field horsetail Equisetum arvense	Fern	11 in	Sun–part shade	High	Zone 3a
field pussytoes Antennaria neglecta	Wildflower (forb)	1 ft	Sun	Low	Zone 3b
flowering dogwood Cornus florida	Tree	30 ft	Shade-tolerant	Low	Zone 4b
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
Frank's sedge Carex frankii	Grass or grass-like	2 ft	Shade-tolerant	High	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
golden ragwort Packera aurea	Wildflower (forb)	3.9 ft	Shade-tolerant	High	Zone 3a
grassleaf rush Juncus marginatus	Grass or grass-like	2 ft	Sun–part shade	Medium	Zone 5a
gray alder Alnus incana	Tree	25 ft	Sun–part shade	High	Zone 4a
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
greater straw sedge Carex normalis	Grass or grass-like	5 ft	Shade-tolerant	High	Zone 4a
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
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
hairy lespedeza Lespedeza hirta	Wildflower (forb)	6 ft	Sun	Low	Zone 6a
harvestlice Agrimonia parviflora	Wildflower (forb)	6 ft	Sun–part shade	High	Zone 4a
hop sedge Carex lupulina	Grass or grass-like	4.3 ft	Sun–part shade	Medium	Zone 3b
Indian woodoats Chasmanthium latifolium	Grass or grass-like	4.6 ft	Shade-tolerant	Medium	Zone 4a
Indianhemp Apocynum cannabinum	Wildflower (forb)	3.3 ft	Sun–part shade	High	Zone 3a
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
lanceleaf loosestrife Lysimachia lanceolata	Wildflower (forb)	2.5 ft	Shade-tolerant	Medium	Zone 5a
limestone wild petunia Ruellia strepens	Wildflower (forb)	3.6 ft	Shade-tolerant	Low	Zone 6a
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
longleaf starwort Stellaria longifolia	Wildflower (forb)	1.5 ft	Shade-tolerant	High	Zone 3b
lopsided rush Juncus secundus	Grass or grass-like	1.5 ft	Sun	Low	Zone 4a
mapleleaf viburnum Viburnum acerifolium	Shrub	6 ft	Shade-tolerant	Medium	Zone 4b
Maryland senna Senna marilandica	Wildflower (forb)	6.6 ft	Sun–part shade	Low	Zone 5b
mockernut hickory Carya tomentosa	Tree	85 ft	Sun–part shade	Medium	Zone 4a
narrowleaf blue-eyed grass Sisyrinchium angustifolium	Wildflower (forb)	2 ft	Sun–part shade	Medium	Zone 7a
New Jersey tea Ceanothus americanus	Shrub	3 ft	Shade-tolerant	Low	Zone 4b
New York fern Thelypteris noveboracensis	Fern	1.5 ft	Shade-tolerant	Low	Zone 4b
nimblewill Muhlenbergia schreberi	Grass or grass-like	3.2 ft	Shade-tolerant	Low	Zone 4a
nodding fescue Festuca subverticillata	Grass or grass-like	3 ft	Sun–part shade	Medium	Zone 3a
northern bush honeysuckle Diervilla lonicera	Shrub	2.4 ft	Sun–part shade	Low	Zone 5a
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
oval-leaf sedge Carex cephalophora	Grass or grass-like	2.6 ft	Sun–part shade	Low	Zone 4a
pale touch-me-not Impatiens pallida	Wildflower (forb)	8.2 ft	Shade-tolerant	Medium	Zone 10b
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
Pennsylvania bittercress Cardamine pensylvanica	Wildflower (forb)	1.5 ft	Shade-tolerant	Medium	Zone 4a
Philadelphia fleabane Erigeron philadelphicus	Wildflower (forb)	2.8 ft	Sun–part shade	Medium	Zone 4b
pignut hickory Carya glabra	Tree	80 ft	Sun–part shade	Medium	Zone 4a
pinnate prairie coneflower Ratibida pinnata	Wildflower (forb)	4 ft	Sun	Medium	Zone 3b
poverty rush Juncus tenuis	Grass or grass-like	1.5 ft	Sun–part shade	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
purpletop tridens Tridens flavus	Grass or grass-like	2.5 ft	Sun	Low	Zone 5a
quill sedge Carex tenera	Grass or grass-like	2.5 ft	Shade-tolerant	Medium	Zone 4a
rattlesnake fern Botrychium virginianum	Fern	1.4 ft	Shade-tolerant	Medium	Zone 3b
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
redtop panicgrass Panicum rigidulum	Grass or grass-like	3.3 ft	Sun	High	Zone 4a
rice cutgrass Leersia oryzoides	Grass or grass-like	4.9 ft	Sun	High	Zone 4a
river birch Betula nigra	Tree	70 ft	Sun	High	Zone 4a
riverbank wildrye Elymus riparius	Grass or grass-like	4.5 ft	Shade-tolerant	High	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 greenbrier Smilax rotundifolia	Vine	1 ft	Sun	Medium	Zone 4a
rufous bulrush Scirpus pendulus	Grass or grass-like	4 ft	Sun	Medium	Zone 3b
sassafras Sassafras albidum	Tree	75 ft	Sun	Low	Zone 4b
sawtooth blackberry Rubus argutus	Shrub	8.2 ft	Sun	Medium	Zone 6a
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
Short's sedge Carex shortiana	Grass or grass-like	3 ft	Sun–part shade	High	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
silver maple Acer saccharinum	Tree	90 ft	Sun–part shade	Medium	Zone 2b
slippery elm Ulmus rubra	Tree	85 ft	Shade-tolerant	High	Zone 3a
smallspike false nettle Boehmeria cylindrica	Wildflower (forb)	3.9 ft	Shade-tolerant	Medium	Zone 4a
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 red oak Quercus falcata	Tree	75 ft	Sun–part shade	Medium	Zone 6a
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
stiff dogwood Cornus foemina	Tree	16 ft	Sun–part shade	Medium	Zone 7a
stiff marsh bedstraw Galium tinctorium	Wildflower (forb)	10 in	Shade-tolerant	High	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 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
sweet woodreed Cinna arundinacea	Grass or grass-like	4.9 ft	Shade-tolerant	Low	Zone 4a
tapertip rush Juncus acuminatus	Grass or grass-like	3 ft	Sun–part shade	High	Zone 4a
threelobe beggarticks Bidens tripartita	Wildflower (forb)	3.5 ft	Sun–part shade	High	Zone 12a
trumpet creeper Campsis radicans	Vine	2 ft	Sun	Low	Zone 6a
trumpetweed Eutrochium fistulosum	Wildflower (forb)	6 ft	Sun–part shade	High	Zone 4b
tuliptree Liriodendron tulipifera	Tree	120 ft	Sun	Medium	Zone 5b
upland bentgrass Agrostis perennans	Grass or grass-like	3.5 ft	Sun–part shade	High	Zone 4a
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 spiderwort Tradescantia virginiana	Wildflower (forb)	1.1 ft	Sun–part shade	Medium	Zone 3b
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
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 edge sedge Carex debilis	Grass or grass-like	3 ft	Shade-tolerant	High	Zone 6a
white oak Quercus alba	Tree	100 ft	Sun–part shade	Medium	Zone 3a
whitegrass Leersia virginica	Grass or grass-like	3.9 ft	Shade-tolerant	Medium	Zone 3a
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
wild sweetwilliam Phlox maculata	Wildflower (forb)	2 ft	Sun	Medium	Zone 5b
winged sumac Rhus copallinum	Tree	8 ft	Sun	Low	Zone 4b
woodland bluegrass Poa sylvestris	Grass or grass-like	3 ft	Shade-tolerant	High	Zone 4a
woolgrass Scirpus cyperinus	Grass or grass-like	4.9 ft	Sun–part shade	High	Zone 4a
yellow buckeye Aesculus flava	Tree	65 ft	Shade-tolerant	High	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 312

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 burnweed Erechtites hieraciifolius
American cancer-root Conopholis americana
American columbo Frasera caroliniensis
American false pennyroyal Hedeoma pulegioides
American ginseng Panax quinquefolius
American ipecac Gillenia stipulata
American lopseed Phryma leptostachya
American senna Senna hebecarpa
American spikenard Aralia racemosa
American stoneseed Lithospermum latifolium
Appalachian barren strawberry Waldsteinia fragarioides
autumn coralroot Corallorhiza odontorhiza
beechdrops Epifagus virginiana
beggarslice Hackelia virginiana
black baneberry Actaea racemosa
blackseed plantain Plantago rugelii
blisterwort Ranunculus recurvatus
bloodroot Sanguinaria canadensis
bloody butcher Trillium recurvatum
blue ash Fraxinus quadrangulata
Blue Ridge blueberry Vaccinium pallidum
blue sedge Carex glaucodea
blue skullcap Scutellaria lateriflora
blue waxweed Cuphea viscosissima
bluntleaf waterleaf Hydrophyllum canadense
Bosc's panicgrass Dichanthelium boscii
broad beechfern Phegopteris hexagonoptera
broad looseflower sedge Carex laxiflora
broadleaf sedge Carex platyphylla
brown widelip orchid Liparis liliifolia
bulblet bladderfern Cystopteris bulbifera
Canada lettuce Lactuca canadensis
Canadian blacksnakeroot Sanicula canadensis
Canadian clearweed Pilea pumila
Canadian honewort Cryptotaenia canadensis
Canadian wildginger Asarum canadense
Carolina geranium Geranium carolinianum
Carolina leaf-flower Phyllanthus caroliniensis
Carolina sedge Carex caroliniana
Carolina wild petunia Ruellia caroliniensis
carpenter's square Scrophularia marilandica
celandine poppy Stylophorum diphyllum
chaffweed Anagallis minima
Christmas fern Polystichum acrostichoides
churchmouse threeawn Aristida dichotoma
clammy hedgehyssop Gratiola neglecta
clasping milkweed Asclepias amplexicaulis
clasping Venus' looking-glass Triodanis perfoliata
climbing milkvine Matelea obliqua
common boneset Eupatorium perfoliatum
common cinquefoil Potentilla simplex
common dittany Cunila origanoides
common milkweed Asclepias syriaca
common pricklyash Zanthoxylum americanum
common threeseed mercury Acalypha rhomboidea
common yellow oxalis Oxalis stricta
cream avens Geum virginianum
creeping lespedeza Lespedeza repens
crinkleroot Cardamine diphylla
crippled cranefly Tipularia discolor
cusp dodder Cuscuta cuspidata
cutleaf grapefern Botrychium dissectum
cutleaf toothwort Cardamine concatenata
cypress panicgrass Dichanthelium dichotomum
devil's bite Liatris scariosa
dogtooth violet Erythronium americanum
downy rattlesnake plantain Goodyera pubescens
dutchman's breeches Dicentra cucullaria
dwarf crested iris Iris cristata
dwarf larkspur Delphinium tricorne
early goldenrod Solidago juncea
early meadow-rue Thalictrum dioicum
earlyleaf brome Bromus latiglumis
eastern bottlebrush grass Elymus hystrix
eastern gray beardtongue Penstemon canescens
eastern greenviolet Hybanthus concolor
ebony spleenwort Asplenium platyneuron
elmleaf goldenrod Solidago ulmifolia
Engelmann's spikerush Eleocharis engelmannii
fall phlox Phlox paniculata
false aloe Manfreda virginica
false boneset Brickellia eupatorioides
false hop sedge Carex lupuliformis
fan clubmoss Lycopodium digitatum
feathery false lily of the valley Maianthemum racemosum
fernleaf phacelia Phacelia bipinnatifida
fetid marigold Dyssodia papposa
fibrousroot sedge Carex communis
fire pink Silene virginica
flowering spurge Euphorbia corollata
fourleaf milkweed Asclepias quadrifolia
fourleaf yam Dioscorea quaternata
fragrant bedstraw Galium triflorum
fringed loosestrife Lysimachia ciliata
fuzzy wuzzy sedge Carex hirsutella
glade fern Diplazium pycnocarpon
goldenseal Hydrastis canadensis
Goldie's woodfern Dryopteris goldieana
great blue lobelia Lobelia siphilitica
great Indian plantain Arnoglossum reniforme
great waterleaf Hydrophyllum appendiculatum
great yellow woodsorrel Oxalis grandis
greater marsh St. Johnswort Triadenum walteri
Greek valerian Polemonium reptans
green carpetweed Mollugo verticillata
green dragon Arisaema dracontium
grooved flax Linum sulcatum
hairy bedstraw Galium pilosum
hairy forked nailwort Paronychia fastigiata
hairy pagoda-plant Blephilia hirsuta
hairy pinweed Lechea mucronata
hairy Solomon's seal Polygonatum pubescens
hairy sunflower Helianthus hirsutus
hairy wildrye Elymus villosus
hairyfruit chervil Chaerophyllum tainturieri
hairyjoint meadowparsnip Thaspium barbinode
halberdleaf tearthumb Polygonum arifolium
harbinger of spring Erigenia bulbosa
heartleaf skullcap Scutellaria ovata
hedgehog woodrush Luzula echinata
hoary puccoon Lithospermum canescens
hoary skullcap Scutellaria incana
hogwort Croton capitatus
honeyvine Cynanchum laeve
hooded arrowhead Sagittaria calycina
horned pondweed Zannichellia palustris
hortulan plum Prunus hortulana
husk tomato Physalis pubescens
Indian cucumber Medeola virginiana
Indian-tobacco Lobelia inflata
Indianpipe Monotropa uniflora
James' sedge Carex jamesii
jumpseed Polygonum virginianum
king of the meadow Thalictrum pubescens
lanceleaf fogfruit Phyla lanceolata
largebracted plantain Plantago aristata
largeflower bellwort Uvularia grandiflora
largefruit blacksnakeroot Sanicula trifoliata
largeleaf waterleaf Hydrophyllum macrophyllum
lateflowering thoroughwort Eupatorium serotinum
lesser marsh St. Johnswort Triadenum tubulosum
lesser yellow lady's slipper Cypripedium parviflorum
limestone adderstongue Ophioglossum engelmannii
lizard's tail Saururus cernuus
longleaf groundcherry Physalis longifolia
longleaf summer bluet Houstonia longifolia
longsepal beardtongue Penstemon calycosus
lowland bladderfern Cystopteris protrusa
lowland rotala Rotala ramosior
man of the earth Ipomoea pandurata
manyfruit primrose-willow Ludwigia polycarpa
mayapple Podophyllum peltatum
Missouri violet Viola missouriensis
mullein foxglove Dasistoma macrophylla
nakedflower ticktrefoil Desmodium nudiflorum
narrowleaf mountainmint Pycnanthemum tenuifolium
narrowleaf paleseed Leucospora multifida
narrowleaf pinweed Lechea tenuifolia
narrowleaf vervain Verbena simplex
netted chainfern Woodwardia areolata
nits and lice Hypericum drummondii
nodding chickweed Cerastium nutans
nodding onion Allium cernuum
northern slender lady's tresses Spiranthes lacera
Norwegian cinquefoil Potentilla norvegica
orangefruit horse-gentian Triosteum aurantiacum
pale Indian plantain Arnoglossum atriplicifolium
paleleaf woodland sunflower Helianthus strumosus
palespike lobelia Lobelia spicata
Parlin's pussytoes Antennaria parlinii
Pennsylvania pellitory Parietaria pensylvanica
poorjoe Diodia teres
Porter's reedgrass Calamagrostis porteri
poverty dropseed Sporobolus vaginiflorus
prairie tea Croton monanthogynus
prairie threeawn Aristida oligantha
procession flower Polygala incarnata
pubescent sedge Carex hirtifolia
purple cliffbrake Pellaea atropurpurea
purple meadowparsnip Thaspium trifoliatum
purple milkweed Asclepias purpurascens
purple milkwort Polygala sanguinea
purple passionflower Passiflora incarnata
purplerocket Iodanthus pinnatifidus
queendevil Hieracium gronovii
rabbit-tobacco Pseudognaphalium obtusifolium
ramp Allium tricoccum
red hickory Carya ovalis
ribbed sedge Carex virescens
rock muhly Muhlenbergia sobolifera
rosepink Sabatia angularis
rosy sedge Carex rosea
rough hawkweed Hieracium scabrum
rough rattlesnakeroot Prenanthes aspera
roundseed panicgrass Dichanthelium sphaerocarpon
rue anemone Thalictrum thalictroides
rusty blackhaw Viburnum rufidulum
sand bittercress Cardamine parviflora
sand violet Viola affinis
scaldweed Cuscuta gronovii
seedbox Ludwigia alternifolia
Seneca snakeroot Polygala senega
sensitive fern Onoclea sensibilis
sensitive partridge pea Chamaecrista nictitans
shining bedstraw Galium concinnum
shiny wedgescale Sphenopholis nitida
Short's aster Symphyotrichum shortii
showy goldenrod Solidago erecta
showy orchid Galearis spectabilis
shrubby lespedeza Lespedeza frutescens
silver false spleenwort Deparia acrostichoides
sixweeks fescue Vulpia octoflora
sleepy silene Silene antirrhina
slender lespedeza Lespedeza virginica
slender looseflower sedge Carex gracilescens
slender threeseed mercury Acalypha gracilens
slender toothwort Cardamine angustata
slender wedgescale Sphenopholis intermedia
slender woodland sedge Carex digitalis
slenderleaf false foxglove Agalinis tenuifolia
slimflower muhly Muhlenbergia tenuiflora
slimleaf panicgrass Dichanthelium linearifolium
slimpod rush Juncus diffusissimus
slimspike threeawn Aristida longespica
small green wood orchid Platanthera clavellata
small woodland sunflower Helianthus microcephalus
smartweed dodder Cuscuta polygonorum
smooth cliffbrake Pellaea glabella
smooth forked nailwort Paronychia canadensis
smooth oxeye Heliopsis helianthoides
smooth rockcress Arabis laevigata
smooth Solomon's seal Polygonatum biflorum
smooth yellow false foxglove Aureolaria flava
snow trillium Trillium nivale
soft agrimony Agrimonia pubescens
southern blue monkshood Aconitum uncinatum
southern mountainmint Pycnanthemum pycnanthemoides
Spanish needles Bidens bipinnata
spiked crested coralroot Hexalectris spicata
spoonleaf purple everlasting Gamochaeta purpurea
spotted geranium Geranium maculatum
spotted sandmat Chamaesyce maculata
spotted water hemlock Cicuta maculata
spreading sedge Carex laxiculmis
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
star chickweed Stellaria pubera
stiff yellow flax Linum medium
stout rush Juncus nodatus
striped cream violet Viola striata
swamp dock Rumex verticillatus
Swan's sedge Carex swanii
sweetscented joe pye weed Eutrochium purpureum
tall thimbleweed Anemone virginiana
tall thistle Cirsium altissimum
tall thoroughwort Eupatorium altissimum
tall tickseed Coreopsis tripteris
thin paspalum Paspalum setaceum
three-lobe violet Viola triloba
tinted woodland spurge Euphorbia commutata
toadshade Trillium sessile
trailing arbutus Epigaea repens
trailing lespedeza Lespedeza procumbens
turk's-cap lily Lilium superbum
twinleaf Jeffersonia diphylla
twoflower dwarfdandelion Krigia biflora
upland boneset Eupatorium sessilifolium
vasevine Clematis viorna
veiny pea Lathyrus venosus
veiny skullcap Scutellaria nervosa
Venus' pride Houstonia purpurea
violet lespedeza Lespedeza violacea
Virginia pennywort Obolaria virginica
Virginia plantain Plantago virginica
Virginia snakeroot Aristolochia serpentaria
Virginia springbeauty Claytonia virginica
Virginia strawberry Fragaria virginiana
Virginia tephrosia Tephrosia virginiana
walking fern Asplenium rhizophyllum
warty spurge Euphorbia spathulata
waxyleaf meadow-rue Thalictrum revolutum
weakstalk bulrush Schoenoplectiella purshiana
white baneberry Actaea pachypoda
white goldenrod Solidago bicolor
white snakeroot Ageratina altissima
white vervain Verbena urticifolia
whiteflower leafcup Polymnia canadensis
whitestar Ipomoea lacunosa
whitetinge sedge Carex albicans
whorled rosinweed Silphium trifoliatum
whorled yellow loosestrife Lysimachia quadrifolia
widowsfrill Silene stellata
wild comfrey Cynoglossum virginianum
wild hydrangea Hydrangea arborescens
Willdenow's sedge Carex willdenowii
wingstem Verbesina alternifolia
wiry panicgrass Panicum flexile
woodland flax Linum virginianum
woodland stonecrop Sedum ternatum
woodland sunflower Helianthus divaricatus
yellow pimpernel Taenidia integerrima
yellowfruit horse-gentian Triosteum angustifolium
yellowfruit sedge Carex annectens
yellowseed false pimpernel Lindernia dubia
zigzag spiderwort Tradescantia subaspera

Compared with Indiana

The typical county is the median of the 92 Indiana 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, Washington County and Indiana
Measure	Washington County	Typical county	Statewide
Native species	513	494	1,773
Garden-ready natives	201	211	601
Tree	62	—	164
Shrub	16	—	88
Wildflower (forb)	305	—	954
Grass or grass-like	86	—	416
Vine	24	—	74
Fern	20	—	77

Neighboring counties

Counties that share a ZIP code with Washington County.

Clark County, IN 262 garden-ready
Floyd County, IN 231 garden-ready
Harrison County, IN 285 garden-ready
Jackson County, IN 264 garden-ready
Orange County, IN 143 garden-ready
Scott County, IN 111 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: Washington County (county FIPS 18175), Indiana. 513 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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