Native plants · State

Native plants of Wyoming

1,060 species are recorded as native to Wyoming in Kew’s World Checklist of Vascular Plants and USDA PLANTS and recorded in the state by USDA PLANTS, 576 of them with growing traits. County lists cover 23 of the state’s 23 counties; the typical county has 414.

State summary · USDA PLANTS and Kew WCVP

Wyoming at a glance

Native species statewide
1,060 Of 2,315 species Kew’s World Checklist records as native to Wyoming (before this site’s scope)
Garden-ready natives
576 With PLANTS growing records
Typical county
414 Median native species per county; 243 garden-ready
Share by type (all 1,060 native species)
Percent of the 1,060 native species in each growth type
Tree 7% (69)
Shrub 8% (89)
Wildflower (forb) 57% (606)
Grass or grass-like 23% (242)
Vine 2% (17)
Fern 3% (37)

Wildflowers: 606 · grasses and grass-like: 242 · trees: 69 · shrubs: 89 · vines: 17 · ferns: 37.

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.

Native plants by county

23 Wyoming counties with PLANTS county records
CountyNative speciesGarden-readyHardiness zones
Albany County 666 378 4a–5b
Big Horn County 414 268 4b–5a
Campbell County 392 207 4b–5a
Carbon County 596 363 4a–5b
Converse County 312 172 5a
Crook County 622 308 4b–5a
Fremont County 582 355 4b–5a
Goshen County 277 143 5a
Hot Springs County 260 176 4b–5a
Johnson County 542 308 5a
Laramie County 449 236 5a–5b
Lincoln County 375 243 4a–5b
Natrona County 443 258 5a
Niobrara County 265 143 4b–5a
Park County 585 353 4b–5a
Platte County 296 153 5a
Sheridan County 557 311 4b–5a
Sublette County 393 265 4a–4b
Sweetwater County 362 232 4a–5b
Teton County 522 335 4a–5b
Uinta County 244 171 5a–5b
Washakie County 356 222 4b–5a
Weston County 474 232 4b

Garden-ready natives of Wyoming

Statewide list. A species native somewhere in Wyoming may not be native in your county: use the county lists above to narrow it.

Tree 63

Shrub 75

Wildflower (forb) 264

Grass or grass-like 161

Vine 6

Fern 7

Also listed as native and introduced here 7

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
  • biennial wormwoodArtemisia biennis
  • claspleaf twistedstalkStreptopus amplexifolius
  • common reedPhragmites australis
  • hedge false bindweedCalystegia sepium
  • Kentucky bluegrassPoa pratensis
  • white sagebrushArtemisia ludoviciana

Look up a Wyoming 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
Wyoming: 1,060 native species in this site’s scope; county lists for 23 counties.
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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