Native plants · Indiana

Native plants of Clay County

390 plant species are recorded as native to Indiana in Kew’s World Checklist of Vascular Plants and USDA PLANTS, and recorded in Clay County by USDA PLANTS. 192 of them have growing records you can filter by light, moisture, height and estimated cold hardiness. 1 more species is listed as both native and introduced and kept in a separate section.

County summary · USDA PLANTS and Kew WCVP

Clay County, Indiana

Native species: 390 Typical Indiana county: 494 (median of 92 counties)
Garden-ready natives: 192 Typical Indiana county: 211
Share by type (all 390 native species): Percent of the 390 native species in each growth type

Tree 13% (50)
Shrub 3% (10)
Wildflower (forb) 55% (215)
Grass or grass-like 20% (79)
Vine 5% (18)
Fern 5% (18)

Wildflowers make up the largest share of the native list (55%), 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 6a (2023 map).

The native plant list

Garden-ready natives 192

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

Garden-ready native plants of Clay 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 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 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
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
autumn bluegrass Poa autumnalis	Grass or grass-like	1.5 ft	Sun–part shade	Medium	Zone 6b
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 raspberry Rubus occidentalis	Shrub	6 ft	Sun–part shade	Medium	Zone 4b
black walnut Juglans nigra	Tree	100 ft	Sun	High	Zone 4b
blackeyed Susan Rudbeckia hirta	Wildflower (forb)	1 ft	Sun	Medium	Zone 5a
blackhaw Viburnum prunifolium	Tree	16 ft	Shade-tolerant	Medium	Zone 4a
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
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
broadleaf rosette grass Dichanthelium latifolium	Grass or grass-like	3.3 ft	Sun–part shade	Low	Zone 3a
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
burningbush Euonymus atropurpureus	Tree	10 ft	Shade-tolerant	Low	—
butterfly milkweed Asclepias tuberosa	Wildflower (forb)	2 ft	Sun	Low	Zone 4a
butternut Juglans cinerea	Tree	80 ft	Sun	Medium	Zone 4a
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
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 lousewort Pedicularis canadensis	Wildflower (forb)	1.3 ft	Shade-tolerant	Medium	Zone 3a
Canadian waterweed Elodea canadensis	Wildflower (forb)	—	Sun	High	Zone 4a
cardinalflower Lobelia cardinalis	Wildflower (forb)	5.9 ft	Shade-tolerant	Low	Zone 4a
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
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
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 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
crested sedge Carex cristatella	Grass or grass-like	3 ft	Shade-tolerant	High	Zone 4a
crested woodfern Dryopteris cristata	Fern	1.6 ft	Shade-tolerant	High	Zone 4a
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
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
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
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 paspalum Paspalum laeve	Grass or grass-like	2.9 ft	Sun–part shade	Medium	Zone 6a
field pussytoes Antennaria neglecta	Wildflower (forb)	1 ft	Sun	Low	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
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 goldenrod Solidago gigantea	Wildflower (forb)	8.2 ft	Sun–part shade	Medium	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
graybark grape Vitis cinerea	Vine	50 ft	Sun–part shade	Medium	Zone 6b
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
groundnut Apios americana	Vine	1 ft	Shade-tolerant	Medium	Zone 5a
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
harvestlice Agrimonia parviflora	Wildflower (forb)	6 ft	Sun–part shade	High	Zone 4a
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
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
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
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
mapleleaf viburnum Viburnum acerifolium	Shrub	6 ft	Shade-tolerant	Medium	Zone 4b
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
Missouri ironweed Vernonia missurica	Wildflower (forb)	6 ft	Sun	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 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
northern maidenhair Adiantum pedatum	Fern	1.3 ft	Shade-tolerant	Medium	Zone 3b
northern spicebush Lindera benzoin	Tree	12 ft	Sun–part shade	Medium	Zone 5a
Ohio buckeye Aesculus glabra	Tree	68 ft	Shade-tolerant	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
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
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
poverty rush Juncus tenuis	Grass or grass-like	1.5 ft	Sun–part shade	Medium	Zone 3b
prairie fleabane Erigeron strigosus	Wildflower (forb)	3 ft	Sun	Medium	Zone 4b
prairie willow Salix humilis	Shrub	10 ft	Sun–part shade	High	Zone 3a
prickly bog sedge Carex atlantica	Grass or grass-like	1.8 ft	Sun–part shade	High	Zone 5b
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
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
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
rough avens Geum laciniatum	Wildflower (forb)	3.1 ft	Sun–part shade	Medium	Zone 5a
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
sandbar willow Salix interior	Tree	30 ft	Sun	—	Zone 1a
sassafras Sassafras albidum	Tree	75 ft	Sun	Low	Zone 4b
sawtooth sunflower Helianthus grosseserratus	Wildflower (forb)	5 ft	Sun	Medium	Zone 3a
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
shingle oak Quercus imbricaria	Tree	45 ft	Sun	Medium	Zone 5b
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 hedgenettle Stachys tenuifolia	Wildflower (forb)	25 ft	Shade-tolerant	High	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
spotted St. Johnswort Hypericum punctatum	Wildflower (forb)	3 ft	Shade-tolerant	Medium	Zone 4a
stalked bulrush Scirpus pedicellatus	Grass or grass-like	6.6 ft	Sun	High	Zone 4b
stiff dogwood Cornus foemina	Tree	16 ft	Sun–part shade	Medium	Zone 7a
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
swamp cottonwood Populus heterophylla	Tree	100 ft	Sun	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
switchgrass Panicum virgatum	Grass or grass-like	5 ft	Sun	Medium	Zone 3a
tall cinquefoil Potentilla arguta	Wildflower (forb)	3 ft	Sun–part shade	Medium	Zone 3b
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 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 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
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 meadowsweet Spiraea alba	Shrub	3 ft	Sun–part shade	Medium	Zone 4a
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
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
winter bentgrass Agrostis hyemalis	Grass or grass-like	3.5 ft	Sun–part shade	High	Zone 4a
woolgrass Scirpus cyperinus	Grass or grass-like	4.9 ft	Sun–part shade	High	Zone 4a
wrinkleleaf goldenrod Solidago rugosa	Wildflower (forb)	3.3 ft	Sun–part shade	Medium	Zone 4a
yellow passionflower Passiflora lutea	Vine	16 ft	Shade-tolerant	Low	Zone 5a

Other native species recorded here 198

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.

Allegheny monkeyflower Mimulus ringens
amberique-bean Strophostyles helvola
American alumroot Heuchera americana
American burnweed Erechtites hieraciifolius
American false pennyroyal Hedeoma pulegioides
American hogpeanut Amphicarpaea bracteata
American lopseed Phryma leptostachya
American senna Senna hebecarpa
American spikenard Aralia racemosa
ashy sunflower Helianthus mollis
bearded shorthusk Brachyelytrum erectum
beechdrops Epifagus virginiana
beggarslice Hackelia virginiana
big devils beggartick Bidens vulgata
blackseed plantain Plantago rugelii
blisterwort Ranunculus recurvatus
bloody butcher Trillium recurvatum
blue skullcap Scutellaria lateriflora
bluntleaf waterleaf Hydrophyllum canadense
bluntlobe cliff fern Woodsia obtusa
Bosc's panicgrass Dichanthelium boscii
bristly greenbrier Smilax tamnoides
broad beechfern Phegopteris hexagonoptera
broad looseflower sedge Carex laxiflora
bushy knotweed Polygonum ramosissimum
button eryngo Eryngium yuccifolium
Canada lettuce Lactuca canadensis
Canadian blacksnakeroot Sanicula canadensis
Canadian honewort Cryptotaenia canadensis
Canadian wildginger Asarum canadense
Canadian woodnettle Laportea canadensis
carpenter's square Scrophularia marilandica
Christmas fern Polystichum acrostichoides
churchmouse threeawn Aristida dichotoma
clammy hedgehyssop Gratiola neglecta
clasping Venus' looking-glass Triodanis perfoliata
common boneset Eupatorium perfoliatum
common cinquefoil Potentilla simplex
common threeseed mercury Acalypha rhomboidea
common yellow oxalis Oxalis stricta
cream avens Geum virginianum
cutleaf grapefern Botrychium dissectum
cypress panicgrass Dichanthelium dichotomum
downy rattlesnake plantain Goodyera pubescens
early goldenrod Solidago juncea
early meadow-rue Thalictrum dioicum
earlyleaf brome Bromus latiglumis
eastern bottlebrush grass Elymus hystrix
eastern false rue anemone Enemion biternatum
eastern prickly gooseberry Ribes cynosbati
eastern swamp saxifrage Saxifraga pensylvanica
ebony spleenwort Asplenium platyneuron
elmleaf goldenrod Solidago ulmifolia
erect knotweed Polygonum erectum
fall phlox Phlox paniculata
fan clubmoss Lycopodium digitatum
feathery false lily of the valley Maianthemum racemosum
fernleaf phacelia Phacelia bipinnatifida
fibrousroot sedge Carex communis
field thistle Cirsium discolor
flowering spurge Euphorbia corollata
fourleaf yam Dioscorea quaternata
fragrant bedstraw Galium triflorum
fringed loosestrife Lysimachia ciliata
giant ironweed Vernonia gigantea
glade fern Diplazium pycnocarpon
goldenseal Hydrastis canadensis
great blue lobelia Lobelia siphilitica
great ragweed Ambrosia trifida
greater water dock Rumex orbiculatus
Greek valerian Polemonium reptans
green carpetweed Mollugo verticillata
green dragon Arisaema dracontium
green milkweed Asclepias hirtella
hairy pagoda-plant Blephilia hirsuta
hairy Solomon's seal Polygonatum pubescens
hairy wildrye Elymus villosus
hairyjoint meadowparsnip Thaspium barbinode
halberdleaf tearthumb Polygonum arifolium
heartleaf four o'clock Mirabilis nyctaginea
hedgehog woodrush Luzula echinata
hoary skullcap Scutellaria incana
hoary verbena Verbena stricta
Indian cucumber Medeola virginiana
Indian-tobacco Lobelia inflata
jumpseed Polygonum virginianum
lanceleaf fogfruit Phyla lanceolata
largebracted plantain Plantago aristata
largeflower bellwort Uvularia grandiflora
lateflowering thoroughwort Eupatorium serotinum
leafy bulrush Scirpus polyphyllus
lizard's tail Saururus cernuus
longsepal beardtongue Penstemon calycosus
longstyle sweetroot Osmorhiza longistylis
lowland bladderfern Cystopteris protrusa
lowland rotala Rotala ramosior
manyfruit primrose-willow Ludwigia polycarpa
mat sandbur Cenchrus longispinus
mayapple Podophyllum peltatum
meadow garlic Allium canadense
narrowleaf mountainmint Pycnanthemum tenuifolium
narrowleaf paleseed Leucospora multifida
neckweed Veronica peregrina
nits and lice Hypericum drummondii
nodding evening primrose Oenothera nutans
nodding wakerobin Trillium flexipes
Norwegian cinquefoil Potentilla norvegica
pale Indian plantain Arnoglossum atriplicifolium
paleleaf woodland sunflower Helianthus strumosus
Parlin's pussytoes Antennaria parlinii
Pennsylvania pellitory Parietaria pensylvanica
Philadelphia panicgrass Panicum philadelphicum
pointedleaf ticktrefoil Desmodium glutinosum
poison sumac Toxicodendron vernix
poke milkweed Asclepias exaltata
poorjoe Diodia teres
poverty dropseed Sporobolus vaginiflorus
poverty oatgrass Danthonia spicata
prairie tea Croton monanthogynus
prairie threeawn Aristida oligantha
pubescent sedge Carex hirtifolia
purple fringeless orchid Platanthera peramoena
purple milkwort Polygala sanguinea
queendevil Hieracium gronovii
red hickory Carya ovalis
redwhisker clammyweed Polanisia dodecandra
rock muhly Muhlenbergia sobolifera
rock polypody Polypodium virginianum
rosy sedge Carex rosea
rough hawkweed Hieracium scabrum
roundfruit hedgehyssop Gratiola virginiana
roundleaf ragwort Packera obovata
roundseed panicgrass Dichanthelium sphaerocarpon
s-curve threeawn Aristida ramosissima
seedbox Ludwigia alternifolia
sensitive fern Onoclea sensibilis
shining clubmoss Huperzia lucidula
shiny wedgescale Sphenopholis nitida
shortstalk false bindweed Calystegia silvatica
showy ticktrefoil Desmodium canadense
silver false spleenwort Deparia acrostichoides
sixweeks fescue Vulpia octoflora
slender fimbry Fimbristylis autumnalis
slender lespedeza Lespedeza virginica
slender wedgescale Sphenopholis intermedia
slenderleaf false foxglove Agalinis tenuifolia
slimpod rush Juncus diffusissimus
slimspike threeawn Aristida longespica
smartweed dodder Cuscuta polygonorum
smooth oxeye Heliopsis helianthoides
smooth rockcress Arabis laevigata
smooth yellow false foxglove Aureolaria flava
smoothsheath sedge Carex laevivaginata
soft agrimony Agrimonia pubescens
Spanish needles Bidens bipinnata
spinulose woodfern Dryopteris carthusiana
spoonleaf purple everlasting Gamochaeta purpurea
spotted geranium Geranium maculatum
spotted sandmat Chamaesyce maculata
spotted water hemlock Cicuta maculata
spreading chervil Chaerophyllum procumbens
spring blue eyed Mary Collinsia verna
star chickweed Stellaria pubera
striped cream violet Viola striata
swamp dock Rumex verticillatus
swamp verbena Verbena hastata
Swan's sedge Carex swanii
tall rattlesnakeroot Prenanthes altissima
tall thimbleweed Anemone virginiana
tall thoroughwort Eupatorium altissimum
thin paspalum Paspalum setaceum
thinleaf sunflower Helianthus decapetalus
toadshade Trillium sessile
tufted lovegrass Eragrostis pectinacea
twoflower dwarfdandelion Krigia biflora
twoleaf miterwort Mitella diphylla
upland boneset Eupatorium sessilifolium
vasevine Clematis viorna
violet woodsorrel Oxalis violacea
Virginia pepperweed Lepidium virginicum
Virginia plantain Plantago virginica
Virginia snakeroot Aristolochia serpentaria
Virginia springbeauty Claytonia virginica
waxyleaf meadow-rue Thalictrum revolutum
white baneberry Actaea pachypoda
white snakeroot Ageratina altissima
white vervain Verbena urticifolia
whitestar Ipomoea lacunosa
whitetinge sedge Carex albicans
wholeleaf rosinweed Silphium integrifolium
whorled milkwort Polygala verticillata
widowsfrill Silene stellata
wild hydrangea Hydrangea arborescens
wingstem Verbesina alternifolia
witchgrass Panicum capillare
woodland lettuce Lactuca floridana
yellowseed false pimpernel Lindernia dubia
zigzag spiderwort Tradescantia subaspera

Also listed as native and introduced here 1

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.

annual ragweedAmbrosia artemisiifolia

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, Clay County and Indiana
Measure	Clay County	Typical county	Statewide
Native species	390	494	1,773
Garden-ready natives	192	211	601
Tree	50	—	164
Shrub	10	—	88
Wildflower (forb)	215	—	954
Grass or grass-like	79	—	416
Vine	18	—	74
Fern	18	—	77

Neighboring counties

Counties that share a ZIP code with Clay County.

Greene County, IN 221 garden-ready
Owen County, IN 207 garden-ready
Parke County, IN 226 garden-ready
Putnam County, IN 264 garden-ready
Sullivan County, IN 249 garden-ready
Vigo County, IN 269 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: Clay County (county FIPS 18021), Indiana. 390 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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