Native plants · North Dakota

Native plants of Steele County

272 plant species are recorded as native to North Dakota in Kew’s World Checklist of Vascular Plants and USDA PLANTS, and recorded in Steele County by USDA PLANTS. 134 of them have growing records you can filter by light, moisture, height and estimated cold hardiness. 3 more species are listed as both native and introduced and kept in a separate section.

County summary · USDA PLANTS and Kew WCVP

Steele County, North Dakota

Native species
272 Typical North Dakota county: 287 (median of 53 counties)
Garden-ready natives
134 Typical North Dakota county: 143
Share by type (all 272 native species)
Percent of the 272 native species in each growth type
Tree 7% (18)
Shrub 4% (12)
Wildflower (forb) 63% (171)
Grass or grass-like 22% (59)
Vine 3% (9)
Fern 1% (3)

Wildflowers make up the largest share of the native list (63%), followed by grasses and grass-like plants (22%).

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 4a (2023 map).

The native plant list

Cold hardiness is estimated from each plant’s PLANTS minimum temperature. How we estimate it.

Garden-ready natives 134

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

Garden-ready native plants of Steele County, North Dakota
PlantType HeightLight Water useHardy to
alkali buttercup Ranunculus cymbalaria Wildflower (forb) 1 ft Shade-tolerant High Zone 3b
alkali cordgrass Spartina gracilis Grass or grass-like 3 ft Sun Medium Zone 3b
American basswood Tilia americana Tree 100 ft Shade-tolerant Medium Zone 2b
American hazelnut Corylus americana Shrub 10 ft Sun–part shade Medium Zone 4a
American licorice Glycyrrhiza lepidota Wildflower (forb) 4 ft Sun–part shade High Zone 3b
American plum Prunus americana Tree 24 ft Sun Medium Zone 3b
American red raspberry Rubus idaeus Shrub 6 ft Shade-tolerant — Zone 1a
American vetch Vicia americana Vine 1.3 ft Sun Low Zone 3b
American water horehound Lycopus americanus Wildflower (forb) 1.8 ft Shade-tolerant High Zone 3b
arumleaf arrowhead Sagittaria cuneata Wildflower (forb) 2.6 ft Sun Medium Zone 4a
balsam poplar Populus balsamifera Tree 80 ft Sun High Zone 1a
big bluestem Andropogon gerardii Grass or grass-like 6 ft Sun Low Zone 2b
blanketflower Gaillardia aristata Wildflower (forb) 2 ft Sun Medium Zone 4a
blue grama Bouteloua gracilis Grass or grass-like 1 ft Sun Medium Zone 3a
bluejoint Calamagrostis canadensis Grass or grass-like 4.9 ft Sun Medium Zone 4a
bog willowherb Epilobium leptophyllum Wildflower (forb) 3.6 ft Sun–part shade High Zone 4a
boxelder Acer negundo Tree 60 ft Shade-tolerant Medium Zone 2b
broadfruit bur-reed Sparganium eurycarpum Wildflower (forb) 4.9 ft Sun–part shade High Zone 4a
broadleaf cattail Typha latifolia Wildflower (forb) 5 ft Sun–part shade High Zone 3b
broom snakeweed Gutierrezia sarothrae Shrub 1.5 ft Sun Medium Zone 3b
bur oak Quercus macrocarpa Tree 100 ft Sun–part shade Medium Zone 3b
Canada germander Teucrium canadense Wildflower (forb) 3.3 ft Sun–part shade High Zone 3a
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 milkvetch Astragalus canadensis Wildflower (forb) 6 in Sun Medium Zone 3b
chokecherry Prunus virginiana Tree 25 ft Sun Medium Zone 3a
common cowparsnip Heracleum maximum Wildflower (forb) 8 ft Sun High Zone 3b
common rivergrass Scolochloa festucacea Grass or grass-like 4.9 ft Sun High Zone 3b
common snowberry Symphoricarpos albus Shrub 3 ft Sun Medium Zone 3b
common threesquare Schoenoplectus pungens Grass or grass-like 4.9 ft Sun High Zone 3b
composite dropseed Sporobolus compositus Grass or grass-like 3 ft Sun Low Zone 3b
coon's tail Ceratophyllum demersum Wildflower (forb) — Sun–part shade High Zone 3b
cosmopolitan bulrush Bolboschoenus maritimus Grass or grass-like 3.2 ft Sun Medium Zone 5a
cursed buttercup Ranunculus sceleratus Wildflower (forb) 2 ft Shade-tolerant High Zone 12b
cutleaf coneflower Rudbeckia laciniata Wildflower (forb) 8.2 ft Shade-tolerant Low Zone 3b
devil's beggartick Bidens frondosa Wildflower (forb) 4 ft Sun–part shade Medium Zone 12a
dotted blazing star Liatris punctata Wildflower (forb) 2 ft Sun Medium Zone 3a
downy paintedcup Castilleja sessiliflora Wildflower (forb) 1.3 ft Sun Low Zone 3b
eastern cottonwood Populus deltoides Tree 190 ft Sun High Zone 3a
fiddleleaf hawksbeard Crepis runcinata Wildflower (forb) 1 ft Sun Medium Zone 3b
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
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
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
green ash Fraxinus pennsylvanica Tree 80 ft Shade-tolerant Medium Zone 2b
green needlegrass Nassella viridula Grass or grass-like 2 ft Sun Low Zone 3b
hairy false goldenaster Heterotheca villosa Wildflower (forb) 3 ft Sun Low Zone 4a
hardstem bulrush Schoenoplectus acutus Grass or grass-like 9.8 ft Sun High Zone 3b
Indianhemp Apocynum cannabinum Wildflower (forb) 3.3 ft Sun–part shade High Zone 3a
Jerusalem artichoke Helianthus tuberosus Wildflower (forb) 9.8 ft Sun–part shade Low Zone 3a
lambstongue ragwort Senecio integerrimus Wildflower (forb) 1.1 ft Sun–part shade Medium Zone 3b
leadplant Amorpha canescens Shrub 4 ft Shade-tolerant Low Zone 3b
Lewis flax Linum lewisii Wildflower (forb) 2.5 ft Sun Medium Zone 3b
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
Macoun's buttercup Ranunculus macounii Wildflower (forb) 1 ft Sun — Zone 1a
marsh muhly Muhlenbergia racemosa Grass or grass-like 3 ft Shade-tolerant Medium Zone 3b
mat muhly Muhlenbergia richardsonis Grass or grass-like 6 in Sun High Zone 4b
Missouri goldenrod Solidago missouriensis Wildflower (forb) 3 ft Sun–part shade Low Zone 3b
Missouri River willow Salix eriocephala Tree 52 ft Shade-tolerant High Zone 3b
nannyberry Viburnum lentago Tree 28 ft Shade-tolerant Medium Zone 4a
narrowleaf water plantain Alisma gramineum Wildflower (forb) 1.5 ft Sun High Zone 3a
needle and thread Hesperostipa comata Grass or grass-like 3 ft Sun Low Zone 3b
northern bedstraw Galium boreale Wildflower (forb) 3 ft Sun–part shade Medium Zone 4a
Nuttall's alkaligrass Puccinellia nuttalliana Grass or grass-like 10 in Sun Medium Zone 3b
old man's whiskers Geum triflorum Wildflower (forb) 1.5 ft Sun–part shade Medium Zone 3b
pale agoseris Agoseris glauca Shrub 1 ft Sun Medium Zone 4a
panicled bulrush Scirpus microcarpus Grass or grass-like 5.5 ft Sun Medium Zone 3b
peachleaf willow Salix amygdaloides Tree 60 ft Sun High Zone 4a
Pennsylvania buttercup Ranunculus pensylvanicus Wildflower (forb) 3.9 ft Shade-tolerant High Zone 4b
Philadelphia fleabane Erigeron philadelphicus Wildflower (forb) 2.8 ft Sun–part shade Medium Zone 4b
plains muhly Muhlenbergia cuspidata Grass or grass-like 1.4 ft Sun Low Zone 3b
porcupinegrass Hesperostipa spartea Grass or grass-like 4 ft Sun Medium Zone 3b
prairie cordgrass Spartina pectinata Grass or grass-like 8 ft Sun High Zone 3b
prairie dropseed Sporobolus heterolepis Grass or grass-like 2.3 ft Sun–part shade Low Zone 3b
prairie Junegrass Koeleria macrantha Grass or grass-like 1.5 ft Shade-tolerant High Zone 3b
prairie sagewort Artemisia frigida Shrub 2 ft Sun–part shade Low Zone 3a
prairie sandreed Calamovilfa longifolia Grass or grass-like 4.5 ft Sun Medium Zone 3b
prairie wedgescale Sphenopholis obtusata Grass or grass-like 3.2 ft Sun–part shade Medium Zone 3a
purple milkvetch Astragalus agrestis Wildflower (forb) 1 ft Sun Low Zone 4a
purple prairie clover Dalea purpurea Wildflower (forb) 3 ft Sun Medium Zone 3b
pussy willow Salix discolor Tree 40 ft Shade-tolerant High Zone 4a
quaking aspen Populus tremuloides Tree 65 ft Sun High Zone 1a
red goosefoot Chenopodium rubrum Wildflower (forb) 3 ft Sun High Zone 12b
redosier dogwood Cornus sericea Tree 12 ft Sun High Zone 3b
rice cutgrass Leersia oryzoides Grass or grass-like 4.9 ft Sun High Zone 4a
river bulrush Bolboschoenus fluviatilis Grass or grass-like 6.6 ft Sun Medium Zone 3b
roadside agrimony Agrimonia striata Wildflower (forb) 6 ft Shade-tolerant Medium Zone 3a
rough bentgrass Agrostis scabra Grass or grass-like 2.5 ft Sun Medium Zone 3b
rough bugleweed Lycopus asper Wildflower (forb) 2.1 ft Shade-tolerant High Zone 3b
roundleaf serviceberry Amelanchier sanguinea Tree 10 ft Shade-tolerant Medium Zone 3a
sago pondweed Stuckenia pectinata Wildflower (forb) — Sun High Zone 3b
sandbar willow Salix interior Tree 30 ft Sun — Zone 1a
scratchgrass Muhlenbergia asperifolia Grass or grass-like 2 ft Shade-tolerant High Zone 5b
shortawn foxtail Alopecurus aequalis Grass or grass-like 2.5 ft Sun–part shade High Zone 3b
showy locoweed Oxytropis splendens Wildflower (forb) 1 ft Sun Medium Zone 4a
silverberry Elaeagnus commutata Shrub 12 ft Sun Low Zone 3b
silverweed cinquefoil Argentina anserina Wildflower (forb) 6 in Shade-tolerant High Zone 5a
slender wheatgrass Elymus trachycaulus Grass or grass-like 3 ft Sun Medium Zone 3b
slimstem reedgrass Calamagrostis stricta Grass or grass-like 3 ft Sun–part shade High Zone 3a
smooth blue aster Symphyotrichum laeve Wildflower (forb) 4 ft Sun Medium Zone 3a
smooth horsetail Equisetum laevigatum Fern 5 ft Sun Low Zone 3b
softstem bulrush Schoenoplectus tabernaemontani Grass or grass-like 9 ft Sun High Zone 3b
star duckweed Lemna trisulca Wildflower (forb) 4 in Sun High Zone 3b
stiff goldenrod Oligoneuron rigidum Wildflower (forb) 3.6 ft Sun–part shade Medium Zone 3a
tall cinquefoil Potentilla arguta Wildflower (forb) 3 ft Sun–part shade Medium Zone 3b
textile onion Allium textile Wildflower (forb) 1 ft Sun–part shade Medium Zone 3b
threadleaf sedge Carex filifolia Grass or grass-like 1.2 ft Sun Low Zone 3b
threelobe beggarticks Bidens tripartita Wildflower (forb) 3.5 ft Sun–part shade High Zone 12a
threepetal bedstraw Galium trifidum Vine 10 in Sun–part shade High Zone 3b
toad rush Juncus bufonius Grass or grass-like 1 ft Sun Medium Zone 12a
Torrey's rush Juncus torreyi Grass or grass-like 3.1 ft Sun Medium Zone 3b
tufted loosestrife Lysimachia thyrsiflora Wildflower (forb) 2 ft Sun–part shade High Zone 4a
upright prairie coneflower Ratibida columnifera Wildflower (forb) 3.1 ft Sun Medium Zone 3a
Virginia wildrye Elymus virginicus Grass or grass-like 2.5 ft Shade-tolerant Medium Zone 4b
water knotweed Polygonum amphibium Wildflower (forb) 1 in Sun High Zone 5a
water sedge Carex aquatilis Grass or grass-like 2.9 ft Sun High Zone 3b
western snowberry Symphoricarpos occidentalis Shrub 3 ft Sun–part shade Low Zone 3b
western wheatgrass Pascopyrum smithii Grass or grass-like 2 ft Sun Medium Zone 3a
wheat sedge Carex atherodes Grass or grass-like 5 ft Sun High Zone 3b
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 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
white sagebrush Artemisia ludoviciana Wildflower (forb) 3 ft Sun Low Zone 4a
wild bergamot Monarda fistulosa Wildflower (forb) 4.9 ft Sun–part shade High Zone 4a
wild sarsaparilla Aralia nudicaulis Wildflower (forb) 1.5 ft Shade-tolerant Medium Zone 3b
woolly groundsel Packera cana Wildflower (forb) 1.5 ft Sun Low Zone 3a
yellow owl's-clover Orthocarpus luteus Wildflower (forb) 1.5 ft Sun Low Zone 12b

Other native species recorded here 138

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.

  • American bird's-foot trefoil Lotus unifoliolatus
  • American hogpeanut Amphicarpaea bracteata
  • American mannagrass Glyceria grandis
  • American sloughgrass Beckmannia syzigachne
  • aromatic aster Symphyotrichum oblongifolium
  • Aunt Lucy Ellisia nyctelea
  • autumn onion Allium stellatum
  • bastard toadflax Comandra umbellata
  • biannual lettuce Lactuca ludoviciana
  • big devils beggartick Bidens vulgata
  • bigbract verbena Verbena bracteata
  • blue giant hyssop Agastache foeniculum
  • blue skullcap Scutellaria lateriflora
  • bluntleaf sandwort Moehringia lateriflora
  • bog yellowcress Rorippa palustris
  • brittle bladderfern Cystopteris fragilis
  • brook cinquefoil Potentilla rivalis
  • bushy knotweed Polygonum ramosissimum
  • Canada mayflower Maianthemum canadense
  • Canadian anemone Anemone canadensis
  • Canadian woodnettle Laportea canadensis
  • carelessweed Cyclachaena xanthiifolia
  • Carolina larkspur Delphinium carolinianum
  • clammy hedgehyssop Gratiola neglecta
  • common bladderwort Utricularia macrorhiza
  • common yellow oxalis Oxalis stricta
  • Cuman ragweed Ambrosia psilostachya
  • curlycup gumweed Grindelia squarrosa
  • curlytop knotweed Polygonum lapathifolium
  • cutleaf nightshade Solanum triflorum
  • Dudley's rush Juncus dudleyi
  • earlyleaf brome Bromus latiglumis
  • eastern waterleaf Hydrophyllum virginianum
  • Engelmann's spikerush Eleocharis engelmannii
  • fireberry hawthorn Crataegus chrysocarpa
  • flat-top goldentop Euthamia graminifolia
  • flatspine stickseed Lappula occidentalis
  • Flodman's thistle Cirsium flodmanii
  • foxtail barley Hordeum jubatum
  • fragrant bedstraw Galium triflorum
  • fringed loosestrife Lysimachia ciliata
  • fringed willowherb Epilobium ciliatum
  • Gmelin's buttercup Ranunculus gmelinii
  • golden zizia Zizia aurea
  • great ragweed Ambrosia trifida
  • green comet milkweed Asclepias viridiflora
  • groundplum milkvetch Astragalus crassicarpus
  • hairy evening primrose Oenothera villosa
  • hairy four o'clock Mirabilis hirsuta
  • hairy wildrye Elymus villosus
  • heartleaf four o'clock Mirabilis nyctaginea
  • heavy sedge Carex gravida
  • hemlock waterparsnip Sium suave
  • hoary puccoon Lithospermum canescens
  • horned pondweed Zannichellia palustris
  • lacy tansyaster Machaeranthera pinnatifida
  • large Indian breadroot Pediomelum esculentum
  • Laxmann's milkvetch Astragalus laxmannii
  • leathery knotweed Polygonum achoreum
  • lilac penstemon Penstemon gracilis
  • limber honeysuckle Lonicera dioica
  • longbract frog orchid Dactylorhiza viridis
  • longstyle sweetroot Osmorhiza longistylis
  • lowland yellow loosestrife Lysimachia hybrida
  • marsh pea Lathyrus palustris
  • marsh skullcap Scutellaria galericulata
  • Maryland sanicle Sanicula marilandica
  • Maximilian sunflower Helianthus maximiliani
  • meadow willow Salix petiolaris
  • meadow zizia Zizia aptera
  • Missouri gooseberry Ribes missouriense
  • mountain deathcamas Zigadenus elegans
  • narrowleaf purple coneflower Echinacea angustifolia
  • narrowleaf stoneseed Lithospermum incisum
  • neckweed Veronica peregrina
  • needleleaf sedge Carex duriuscula
  • nodding chickweed Cerastium nutans
  • nodding stickseed Hackelia deflexa
  • northern bog aster Symphyotrichum boreale
  • northern sweetgrass Hierochloe hirta
  • northern water plantain Alisma triviale
  • northern wildrice Zizania palustris
  • Norwegian cinquefoil Potentilla norvegica
  • palespike lobelia Lobelia spicata
  • Paradox cinquefoil Potentilla paradoxa
  • Pennsylvania cinquefoil Potentilla pensylvanica
  • Pennsylvania pellitory Parietaria pensylvanica
  • pleated gentian Gentiana affinis
  • prairie false dandelion Nothocalais cuspidata
  • prairie groundsel Packera plattensis
  • prairie ironweed Vernonia fasciculata
  • prairie rose Rosa arkansana
  • purple meadow-rue Thalictrum dasycarpum
  • purple rattlesnakeroot Prenanthes racemosa
  • pygmyflower rockjasmine Androsace septentrionalis
  • rayless alkali aster Symphyotrichum ciliatum
  • red baneberry Actaea rubra
  • redwool plantain Plantago eriopoda
  • Richardson's pondweed Potamogeton richardsonii
  • Rocky Mountain fescue Festuca saximontana
  • Rocky Mountain sedge Carex saximontana
  • rosy pussytoes Antennaria rosea
  • rough barnyardgrass Echinochloa muricata
  • rough false pennyroyal Hedeoma hispida
  • roughleaf ricegrass Oryzopsis asperifolia
  • rush skeletonplant Lygodesmia juncea
  • scarlet beeblossom Oenothera suffrutescens
  • shortspike watermilfoil Myriophyllum sibiricum
  • shortstalk chickweed Cerastium brachypodum
  • shy wallflower Erysimum inconspicuum
  • silverleaf Indian breadroot Pediomelum argophyllum
  • small pondweed Potamogeton pusillus
  • small-leaf pussytoes Antennaria parvifolia
  • smooth oxeye Heliopsis helianthoides
  • smooth Solomon's seal Polygonatum biflorum
  • spotted water hemlock Cicuta maculata
  • starry false lily of the valley Maianthemum stellatum
  • strict blue-eyed grass Sisyrinchium montanum
  • swamp verbena Verbena hastata
  • tall blazing star Liatris aspera
  • tall thimbleweed Anemone virginiana
  • tarragon Artemisia dracunculus
  • tiny trumpet Collomia linearis
  • veiny meadow-rue Thalictrum venulosum
  • veiny pea Lathyrus venosus
  • Virginia groundcherry Physalis virginiana
  • Virginia strawberry Fragaria virginiana
  • water mudwort Limosella aquatica
  • white prairie aster Symphyotrichum falcatum
  • white rattlesnakeroot Prenanthes alba
  • white vervain Verbena urticifolia
  • whorled milkweed Asclepias verticillata
  • wild cucumber Echinocystis lobata
  • witchgrass Panicum capillare
  • wood lily Lilium philadelphicum
  • woodbine Parthenocissus vitacea
  • woolly sedge Carex pellita
  • yellow avens Geum aleppicum
Also listed as native and introduced here 3

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.

Compared with North Dakota

The typical county is the median of the 53 North Dakota 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, Steele County and North Dakota
MeasureSteele CountyTypical countyStatewide
Native species 272 287 890
Garden-ready natives 134 143 386
Tree 18 — 50
Shrub 12 — 62
Wildflower (forb) 171 — 513
Grass or grass-like 59 — 203
Vine 9 — 31
Fern 3 — 31

Neighboring counties

Counties that share a ZIP code with Steele County.

Look up another ZIP

Matches your ZIP to the county it mostly lies in, then lists the plants recorded as native to your state (Kew’s World Checklist and USDA PLANTS) and recorded in that county by USDA PLANTS.

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
Steele County (county FIPS 38091), North Dakota. 272 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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