Native plants · Iowa
Native plants of Webster County
269 plant species are recorded as native to Iowa in Kew’s World Checklist of Vascular Plants and USDA PLANTS, and recorded in Webster County by USDA PLANTS. 118 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
Webster County, Iowa
- Native species
- 269 Typical Iowa county: 44 (median of 99 counties)
- Garden-ready natives
- 118 Typical Iowa county: 24
- Share by type (all 269 native species)
-
Percent of the 269 native species in each growth type
Wildflowers make up the largest share of the native list (57%), followed by grasses and grass-like plants (28%).
The native plant list
Garden-ready natives 118
Native species with PLANTS growing records (height, light, moisture, minimum temperature). “—” means PLANTS has no value.
| Plant | Type | Height | Light | Water use | Hardy to |
|---|---|---|---|---|---|
| alkali buttercup Ranunculus cymbalaria | Wildflower (forb) | 1 ft | Shade-tolerant | High | Zone 3b |
| American bellflower Campanulastrum americanum | Wildflower (forb) | 6 ft | Shade-tolerant | Medium | Zone 12b |
| American licorice Glycyrrhiza lepidota | Wildflower (forb) | 4 ft | Sun–part shade | High | Zone 3b |
| 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 |
| big bluestem Andropogon gerardii | Grass or grass-like | 6 ft | Sun | Low | Zone 2b |
| 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 |
| blackeyed Susan Rudbeckia hirta | Wildflower (forb) | 1 ft | Sun | Medium | Zone 5a |
| blue cohosh Caulophyllum thalictroides | Wildflower (forb) | 2.5 ft | Shade-tolerant | 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 |
| 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 |
| bulbous bittercress Cardamine bulbosa | Wildflower (forb) | 1.4 ft | Shade-tolerant | Medium | Zone 4a |
| Canada germander Teucrium canadense | Wildflower (forb) | 3.3 ft | Sun–part shade | High | 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 milkvetch Astragalus canadensis | Wildflower (forb) | 6 in | Sun | Medium | Zone 3b |
| common blue violet Viola sororia | Wildflower (forb) | 4 in | Sun–part shade | High | Zone 4b |
| common cowparsnip Heracleum maximum | Wildflower (forb) | 8 ft | Sun | High | 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 |
| composite dropseed Sporobolus compositus | Grass or grass-like | 3 ft | Sun | Low | Zone 3b |
| coralberry Symphoricarpos orbiculatus | Shrub | 2 ft | Sun–part shade | High | Zone 5a |
| 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 |
| cutleaf coneflower Rudbeckia laciniata | Wildflower (forb) | 8.2 ft | Shade-tolerant | Low | Zone 3b |
| devil's darning needles Clematis virginiana | Vine | 15 ft | Sun–part shade | Medium | Zone 3b |
| 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 |
| fall panicgrass Panicum dichotomiflorum | Grass or grass-like | 3.3 ft | Sun | High | Zone 3a |
| 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 |
| fringed brome Bromus ciliatus | Grass or grass-like | 4 ft | Shade-tolerant | Medium | Zone 7a |
| green bulrush Scirpus atrovirens | Grass or grass-like | 5.9 ft | Sun | Medium | Zone 2a |
| green needlegrass Nassella viridula | Grass or grass-like | 2 ft | Sun | Low | Zone 3b |
| groundnut Apios americana | Vine | 1 ft | Shade-tolerant | Medium | Zone 5a |
| hairy grama Bouteloua hirsuta | Grass or grass-like | 6 in | Sun | Low | Zone 3b |
| honeylocust Gleditsia triacanthos | Tree | 70 ft | Sun | Medium | Zone 3b |
| Indiangrass Sorghastrum nutans | Grass or grass-like | 6 ft | Sun | Medium | Zone 3b |
| Jack in the pulpit Arisaema triphyllum | Wildflower (forb) | 1.5 ft | Shade-tolerant | High | Zone 5b |
| jewelweed Impatiens capensis | Wildflower (forb) | 4.9 ft | Shade-tolerant | Medium | Zone 10b |
| Kentucky coffeetree Gymnocladus dioicus | Tree | 100 ft | Sun | Medium | Zone 4a |
| leadplant Amorpha canescens | Shrub | 4 ft | Shade-tolerant | Low | Zone 3b |
| 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 |
| marsh bellflower Campanula aparinoides | Wildflower (forb) | 2 ft | Sun | High | Zone 3b |
| marsh muhly Muhlenbergia racemosa | Grass or grass-like | 3 ft | Shade-tolerant | Medium | Zone 3b |
| Maryland senna Senna marilandica | Wildflower (forb) | 6.6 ft | Sun–part shade | Low | Zone 5b |
| Mexican muhly Muhlenbergia mexicana | Grass or grass-like | 3 ft | Sun–part shade | Medium | Zone 4a |
| nannyberry Viburnum lentago | Tree | 28 ft | Shade-tolerant | Medium | Zone 4a |
| 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 |
| northern bedstraw Galium boreale | Wildflower (forb) | 3 ft | Sun–part shade | Medium | Zone 4a |
| northern maidenhair Adiantum pedatum | Fern | 1.3 ft | Shade-tolerant | Medium | Zone 3b |
| pale touch-me-not Impatiens pallida | Wildflower (forb) | 8.2 ft | Shade-tolerant | Medium | Zone 10b |
| panicled bulrush Scirpus microcarpus | Grass or grass-like | 5.5 ft | Sun | Medium | Zone 3b |
| partridge pea Chamaecrista fasciculata | Wildflower (forb) | 2.4 ft | Shade-tolerant | Medium | Zone 7a |
| Pennsylvania smartweed Polygonum pensylvanicum | Wildflower (forb) | 3.9 ft | Sun | Medium | Zone 10b |
| Philadelphia fleabane Erigeron philadelphicus | Wildflower (forb) | 2.8 ft | Sun–part shade | Medium | Zone 4b |
| pin cherry Prunus pensylvanica | Tree | 30 ft | Sun | Medium | Zone 3b |
| pinnate prairie coneflower Ratibida pinnata | Wildflower (forb) | 4 ft | Sun | Medium | Zone 3b |
| 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 crab apple Malus ioensis | Tree | 25 ft | Sun | Medium | Zone 4b |
| prairie dropseed Sporobolus heterolepis | Grass or grass-like | 2.3 ft | Sun–part shade | Low | Zone 3b |
| 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 |
| purple locoweed Oxytropis lambertii | Wildflower (forb) | 1.4 ft | Sun | Low | Zone 3b |
| purple lovegrass Eragrostis spectabilis | Grass or grass-like | 11 in | Sun | Low | Zone 3a |
| purplestem beggarticks Bidens connata | Wildflower (forb) | 3.2 ft | Sun–part shade | High | Zone 12a |
| pussy willow Salix discolor | Tree | 40 ft | Shade-tolerant | High | Zone 4a |
| redosier dogwood Cornus sericea | Tree | 12 ft | Sun | High | Zone 3b |
| 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 |
| river bulrush Bolboschoenus fluviatilis | Grass or grass-like | 6.6 ft | Sun | Medium | Zone 3b |
| rough bentgrass Agrostis scabra | Grass or grass-like | 2.5 ft | Sun | Medium | Zone 3b |
| roughfruit amaranth Amaranthus tuberculatus | Wildflower (forb) | 6.6 ft | Sun | High | Zone 4a |
| roundhead lespedeza Lespedeza capitata | Wildflower (forb) | 2.6 ft | Sun | Low | Zone 4b |
| 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 |
| 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 |
| shortawn foxtail Alopecurus aequalis | Grass or grass-like | 2.5 ft | Sun–part shade | High | Zone 3b |
| sideoats grama Bouteloua curtipendula | Grass or grass-like | 3 ft | Sun | Medium | Zone 3a |
| silver maple Acer saccharinum | Tree | 90 ft | Sun–part shade | Medium | Zone 2b |
| 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 |
| smallspike false nettle Boehmeria cylindrica | Wildflower (forb) | 3.9 ft | Shade-tolerant | Medium | Zone 4a |
| smooth horsetail Equisetum laevigatum | Fern | 5 ft | Sun | Low | Zone 3b |
| spotted joe pye weed Eutrochium maculatum | Wildflower (forb) | 6 ft | Sun–part shade | High | Zone 4b |
| swamp milkweed Asclepias incarnata | Wildflower (forb) | 4.9 ft | Sun | High | Zone 3b |
| 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 |
| teal lovegrass Eragrostis hypnoides | Grass or grass-like | 4 in | Sun | High | Zone 3b |
| threelobe beggarticks Bidens tripartita | Wildflower (forb) | 3.5 ft | Sun–part shade | High | Zone 12a |
| Torrey's rush Juncus torreyi | Grass or grass-like | 3.1 ft | Sun | Medium | Zone 3b |
| upland bentgrass Agrostis perennans | Grass or grass-like | 3.5 ft | Sun–part shade | High | Zone 4a |
| upright prairie coneflower Ratibida columnifera | Wildflower (forb) | 3.1 ft | Sun | Medium | Zone 3a |
| Virginia creeper Parthenocissus quinquefolia | Vine | 1 ft | Sun–part shade | Low | Zone 4b |
| Virginia wildrye Elymus virginicus | Grass or grass-like | 2.5 ft | Shade-tolerant | Medium | Zone 4b |
| water horsetail Equisetum fluviatile | Fern | 3 ft | Sun | High | Zone 4a |
| water knotweed Polygonum amphibium | Wildflower (forb) | 1 in | Sun | High | Zone 5a |
| 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 |
| 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 |
| 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 |
| wirestem muhly Muhlenbergia frondosa | Grass or grass-like | 2 ft | Shade-tolerant | Medium | Zone 3b |
| yellow marsh marigold Caltha palustris | Wildflower (forb) | 2 ft | Sun | High | Zone 3b |
No garden-ready natives match these filters. Try clearing one.
Other native species recorded here 151
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.
Hidden while “Garden-ready only” is on.
- Allegheny monkeyflower Mimulus ringens
- amberique-bean Strophostyles helvola
- American burnweed Erechtites hieraciifolius
- American hogpeanut Amphicarpaea bracteata
- American lopseed Phryma leptostachya
- American mannagrass Glyceria grandis
- American spikenard Aralia racemosa
- American white waterlily Nymphaea odorata
- arrowhead rattlebox Crotalaria sagittalis
- bald spikerush Eleocharis erythropoda
- balsam groundsel Packera paupercula
- bastard toadflax Comandra umbellata
- bearded shorthusk Brachyelytrum erectum
- beggarslice Hackelia virginiana
- biannual lettuce Lactuca ludoviciana
- big devils beggartick Bidens vulgata
- bigbract verbena Verbena bracteata
- blackseed plantain Plantago rugelii
- blackseed ricegrass Patis racemosa
- blisterwort Ranunculus recurvatus
- bloodroot Sanguinaria canadensis
- blue waxweed Cuphea viscosissima
- bluntlobe cliff fern Woodsia obtusa
- bog yellowcress Rorippa palustris
- browneyed Susan Rudbeckia triloba
- bushy knotweed Polygonum ramosissimum
- Canada lettuce Lactuca canadensis
- Canadian anemone Anemone canadensis
- Canadian blacksnakeroot Sanicula canadensis
- Canadian honewort Cryptotaenia canadensis
- Canadian wildginger Asarum canadense
- Canadian woodnettle Laportea canadensis
- candle anemone Anemone cylindrica
- carelessweed Cyclachaena xanthiifolia
- Carolina anemone Anemone caroliniana
- Carolina draba Draba reptans
- Carolina larkspur Delphinium carolinianum
- carpenter's square Scrophularia marilandica
- clasping Venus' looking-glass Triodanis perfoliata
- Clayton's sweetroot Osmorhiza claytonii
- clustered blacksnakeroot Sanicula odorata
- common bladderwort Utricularia macrorhiza
- common milkweed Asclepias syriaca
- Culver's root Veronicastrum virginicum
- Cuman ragweed Ambrosia psilostachya
- curlytop knotweed Polygonum lapathifolium
- cutleaf toothwort Cardamine concatenata
- Dudley's rush Juncus dudleyi
- dwarf horseweed Conyza ramosissima
- earlyleaf brome Bromus latiglumis
- eastern bottlebrush grass Elymus hystrix
- eastern marsh fern Thelypteris palustris
- feverwort Triosteum perfoliatum
- flatspine stickseed Lappula occidentalis
- flowering spurge Euphorbia corollata
- forked threeawn Aristida basiramea
- foxtail barley Hordeum jubatum
- foxtail prairie clover Dalea leporina
- fragrant bedstraw Galium triflorum
- fringed loosestrife Lysimachia ciliata
- golden zizia Zizia aurea
- grassy arrowhead Sagittaria graminea
- great blue lobelia Lobelia siphilitica
- greater water dock Rumex orbiculatus
- green comet milkweed Asclepias viridiflora
- green dragon Arisaema dracontium
- groundplum milkvetch Astragalus crassicarpus
- hairy wildrye Elymus villosus
- hairy woodland brome Bromus pubescens
- hairyjoint meadowparsnip Thaspium barbinode
- heavy sedge Carex gravida
- hedge false bindweed Calystegia sepium
- Heller's rosette grass Dichanthelium oligosanthes
- hemlock waterparsnip Sium suave
- hoary frostweed Helianthemum bicknellii
- hoary puccoon Lithospermum canescens
- jumpseed Polygonum virginianum
- lace grass Eragrostis capillaris
- large Indian breadroot Pediomelum esculentum
- Leiberg's panicum Dichanthelium leibergii
- longstyle sweetroot Osmorhiza longistylis
- Maximilian sunflower Helianthus maximiliani
- meadow horsetail Equisetum pratense
- Missouri gooseberry Ribes missouriense
- narrowleaf stoneseed Lithospermum incisum
- neckweed Veronica peregrina
- northern sweetgrass Hierochloe hirta
- northern water plantain Alisma triviale
- Nuttall's prairie parsley Polytaenia nuttallii
- pale dock Rumex altissimus
- paleleaf woodland sunflower Helianthus strumosus
- palespike lobelia Lobelia spicata
- poverty oatgrass Danthonia spicata
- prairie false dandelion Nothocalais cuspidata
- prairie groundsel Packera plattensis
- prairie ironweed Vernonia fasciculata
- prairie threeawn Aristida oligantha
- puffsheath dropseed Sporobolus neglectus
- purple cliffbrake Pellaea atropurpurea
- purple meadow-rue Thalictrum dasycarpum
- purple rattlesnakeroot Prenanthes racemosa
- red baneberry Actaea rubra
- red columbine Aquilegia canadensis
- Red River scaleseed Spermolepis inermis
- Rocky Mountain fescue Festuca saximontana
- rough barnyardgrass Echinochloa muricata
- rough rattlesnakeroot Prenanthes aspera
- rue anemone Thalictrum thalictroides
- sensitive fern Onoclea sensibilis
- shortbeak arrowhead Sagittaria brevirostra
- shortspike watermilfoil Myriophyllum sibiricum
- showy orchid Galearis spectabilis
- sicklepod Arabis canadensis
- silverleaf Indian breadroot Pediomelum argophyllum
- sixweeks fescue Vulpia octoflora
- slender wedgescale Sphenopholis intermedia
- slimflower scurfpea Psoralidium tenuiflorum
- slimleaf panicgrass Dichanthelium linearifolium
- smallflower fumewort Corydalis micrantha
- smooth cliffbrake Pellaea glabella
- smooth oxeye Heliopsis helianthoides
- smooth rose Rosa blanda
- soft agrimony Agrimonia pubescens
- spinulose woodfern Dryopteris carthusiana
- spotted water hemlock Cicuta maculata
- spreading dogbane Apocynum androsaemifolium
- stiff tickseed Coreopsis palmata
- swamp lousewort Pedicularis lanceolata
- swamp verbena Verbena hastata
- tall thimbleweed Anemone virginiana
- tall thoroughwort Eupatorium altissimum
- threeflower melicgrass Melica nitens
- tufted lovegrass Eragrostis pectinacea
- veiny pea Lathyrus venosus
- Virginia pepperweed Lepidium virginicum
- Virginia strawberry Fragaria virginiana
- Virginia winged rockcress Sibara virginica
- walking fern Asplenium rhizophyllum
- western silver aster Symphyotrichum sericeum
- western tansymustard Descurainia pinnata
- white lady's slipper Cypripedium candidum
- white rattlesnakeroot Prenanthes alba
- white vervain Verbena urticifolia
- whitehair rosette grass Dichanthelium villosissimum
- whorled milkweed Asclepias verticillata
- widowsfrill Silene stellata
- wild cucumber Echinocystis lobata
- witchgrass Panicum capillare
- wood anemone Anemone quinquefolia
- woolly sedge Carex pellita
- yellow pimpernel Taenidia integerrima
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.
- climbing false buckwheatPolygonum scandens
- common reedPhragmites australis
- Kentucky bluegrassPoa pratensis
Compared with Iowa
The typical county is the median of the 99 Iowa 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.
| Measure | Webster County | Typical county | Statewide |
|---|---|---|---|
| Native species | 269 | 44 | 1,374 |
| Garden-ready natives | 118 | 24 | 496 |
| Tree | 13 | — | 110 |
| Shrub | 6 | — | 72 |
| Wildflower (forb) | 154 | — | 779 |
| Grass or grass-like | 75 | — | 298 |
| Vine | 10 | — | 55 |
| Fern | 11 | — | 60 |
Neighboring counties
Counties that share a ZIP code with Webster County.
- Boone County, IA 43 garden-ready
- Calhoun County, IA 23 garden-ready
- Hamilton County, IA 27 garden-ready
- Humboldt County, IA 24 garden-ready
- Pocahontas County, IA 22 garden-ready
- Wright County, IA 13 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
- Webster County (county FIPS 19187), Iowa. 269 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