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Native plants · Colorado

Native plants of Prowers County

116 plant species are recorded as native to Colorado in Kew’s World Checklist of Vascular Plants and USDA PLANTS, and recorded in Prowers County by USDA PLANTS. 51 of them have growing records you can filter by light, moisture, height and estimated cold hardiness.

County summary · USDA PLANTS and Kew WCVP

Prowers County, Colorado

Native species
116 Typical Colorado county: 237 (median of 63 counties)
Garden-ready natives
51 Typical Colorado county: 148
Share by type (all 116 native species)
Percent of the 116 native species in each growth type
Tree 5% (6)
Shrub 7% (8)
Wildflower (forb) 60% (70)
Grass or grass-like 23% (27)
Vine 2% (2)
Fern 3% (3)

Wildflowers make up the largest share of the native list (60%), followed by grasses and grass-like plants (23%).

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

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

Garden-ready natives 51

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

Garden-ready native plants of Prowers County, Colorado
PlantType HeightLight Water useHardy to
alkali buttercup Ranunculus cymbalaria Wildflower (forb) 1 ft Shade-tolerant High Zone 3b
alkali sacaton Sporobolus airoides Grass or grass-like 3 ft Sun Low Zone 3b
American licorice Glycyrrhiza lepidota Wildflower (forb) 4 ft Sun–part shade High Zone 3b
blue grama Bouteloua gracilis Grass or grass-like 1 ft Sun Medium Zone 3a
broadbeard beardtongue Penstemon angustifolius Wildflower (forb) 3 ft Sun Low Zone 4b
broom snakeweed Gutierrezia sarothrae Shrub 1.5 ft Sun Medium Zone 3b
buffalograss Bouteloua dactyloides Grass or grass-like 6 in Sun Medium Zone 3b
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
chokecherry Prunus virginiana Tree 25 ft Sun Medium Zone 3a
composite dropseed Sporobolus compositus Grass or grass-like 3 ft Sun Low 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
eastern cottonwood Populus deltoides Tree 190 ft Sun High Zone 3a
fourwing saltbush Atriplex canescens Shrub 4 ft Sun Medium Zone 3a
golden currant Ribes aureum Shrub 10 ft Sun–part shade Low Zone 3b
green prairie coneflower Ratibida tagetes Wildflower (forb) 1 ft Sun Low Zone 4b
Indian blanket Gaillardia pulchella Wildflower (forb) 2 ft Sun Medium Zone 10b
Indian ricegrass Achnatherum hymenoides Grass or grass-like 2 ft Sun Low Zone 3a
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
James' galleta Pleuraphis jamesii Grass or grass-like 2 ft Sun Low Zone 5a
marsh muhly Muhlenbergia racemosa Grass or grass-like 3 ft Shade-tolerant Medium Zone 3b
Missouri gourd Cucurbita foetidissima Vine 1 ft Sun Low Zone 5a
narrowleaf willow Salix exigua Tree 10 ft Sun–part shade High Zone 3b
oneseed juniper Juniperus monosperma Tree 40 ft Sun Low Zone 6a
peachleaf willow Salix amygdaloides Tree 60 ft Sun High Zone 4a
prairie cordgrass Spartina pectinata Grass or grass-like 8 ft Sun High Zone 3b
purple poppymallow Callirhoe involucrata Wildflower (forb) 1 ft Sun Medium Zone 3b
purple threeawn Aristida purpurea Grass or grass-like 1.4 ft Sun Low Zone 4a
rubber rabbitbrush Ericameria nauseosa Shrub 4 ft Sun Medium Zone 3b
saltgrass Distichlis spicata Grass or grass-like 1.1 ft Sun Medium Zone 3b
sand bluestem Andropogon hallii Grass or grass-like 6.1 ft Sun Medium Zone 3b
sandbar willow Salix interior Tree 30 ft Sun — Zone 1a
sanddune wallflower Erysimum capitatum Wildflower (forb) 2.5 ft Sun Medium Zone 4b
scarlet globemallow Sphaeralcea coccinea Wildflower (forb) 1.5 ft Sun Low Zone 5a
showy milkweed Asclepias speciosa Wildflower (forb) 6 ft Sun Medium Zone 4a
skunkbush sumac Rhus trilobata Shrub 4 ft Sun–part shade Low Zone 2a
smooth horsetail Equisetum laevigatum Fern 5 ft Sun Low Zone 3b
soapweed yucca Yucca glauca Shrub 1 ft Sun Low Zone 4b
softstem bulrush Schoenoplectus tabernaemontani Grass or grass-like 9 ft Sun High Zone 3b
spreading yellowcress Rorippa sinuata Wildflower (forb) 1 ft Sun Medium Zone 3b
squirreltail Elymus elymoides Grass or grass-like 1.5 ft Sun Low Zone 3a
streambank wild hollyhock Iliamna rivularis Wildflower (forb) 6 ft Sun–part shade Medium Zone 4a
switchgrass Panicum virgatum Grass or grass-like 5 ft Sun Medium Zone 3a
tanseyleaf tansyaster Machaeranthera tanacetifolia Wildflower (forb) 2 ft Sun Medium Zone 4a
textile onion Allium textile Wildflower (forb) 1 ft Sun–part shade Medium Zone 3b
upright prairie coneflower Ratibida columnifera Wildflower (forb) 3.1 ft Sun Medium Zone 3a
vine mesquite Panicum obtusum Grass or grass-like 2 ft Sun–part shade High Zone 5a
western wheatgrass Pascopyrum smithii Grass or grass-like 2 ft Sun Medium Zone 3a
winterfat Krascheninnikovia lanata Shrub 2 ft Sun Low Zone 2a

Other native species recorded here 65

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.

  • annual buckwheat Eriogonum annuum
  • Aunt Lucy Ellisia nyctelea
  • bastard toadflax Comandra umbellata
  • bigbract verbena Verbena bracteata
  • bighead pygmycudweed Evax prolifera
  • buffalobur nightshade Solanum rostratum
  • bushy knotweed Polygonum ramosissimum
  • Carolina draba Draba reptans
  • chairmaker's bulrush Schoenoplectus americanus
  • Cuman ragweed Ambrosia psilostachya
  • curlytop knotweed Polygonum lapathifolium
  • cutleaf nightshade Solanum triflorum
  • Engelmann's daisy Engelmannia peristenia
  • false buffalograss Munroa squarrosa
  • fetid marigold Dyssodia papposa
  • flatspine bur ragweed Ambrosia acanthicarpa
  • flatspine stickseed Lappula occidentalis
  • foxtail barley Hordeum jubatum
  • fringed loosestrife Lysimachia ciliata
  • great ragweed Ambrosia trifida
  • green comet milkweed Asclepias viridiflora
  • heartleaf four o'clock Mirabilis nyctaginea
  • Hopi tea greenthread Thelesperma megapotamicum
  • lacy tansyaster Machaeranthera pinnatifida
  • lemon scurfpea Psoralidium lanceolatum
  • longleaf groundcherry Physalis longifolia
  • Louisiana broomrape Orobanche ludoviciana
  • Maximilian sunflower Helianthus maximiliani
  • mealy goosefoot Chenopodium incanum
  • narrowleaf stoneseed Lithospermum incisum
  • Oregon cliff fern Woodsia oregana
  • pale dock Rumex altissimus
  • plains bluegrass Poa arida
  • plains springparsley Cymopterus acaulis
  • prairie cupgrass Eriochloa contracta
  • prairie false dandelion Nothocalais cuspidata
  • prairie groundsel Packera plattensis
  • prairie sandmat Chamaesyce missurica
  • prairie spiderwort Tradescantia occidentalis
  • prairie sunflower Helianthus petiolaris
  • ram's horn Proboscidea louisianica
  • River Broom-Rape Orobanche riparia
  • rush skeletonplant Lygodesmia juncea
  • rusty lupine Lupinus pusillus
  • scarlet beeblossom Oenothera suffrutescens
  • shaggy dwarf morning-glory Evolvulus nuttallianus
  • sixweeks fescue Vulpia octoflora
  • slender lipfern Cheilanthes feei
  • slimflower scurfpea Psoralidium tenuiflorum
  • snowball sand verbena Abronia fragrans
  • spinystar Escobaria vivipara
  • spreading fleabane Erigeron divergens
  • stemless four-nerve daisy Tetraneuris acaulis
  • Texas croton Croton texensis
  • threenerve goldenrod Solidago velutina
  • tumble windmill grass Chloris verticillata
  • velvetweed Oenothera curtiflora
  • wavyleaf thistle Cirsium undulatum
  • wedgeleaf Phyla cuneifolia
  • western poison ivy Toxicodendron rydbergii
  • western tansymustard Descurainia pinnata
  • white prairie aster Symphyotrichum falcatum
  • whitest evening primrose Oenothera albicaulis
  • witchgrass Panicum capillare
  • woolly tidestromia Tidestromia lanuginosa

Compared with Colorado

The typical county is the median of the 63 Colorado 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, Prowers County and Colorado
MeasureProwers CountyTypical countyStatewide
Native species 116 237 1,119
Garden-ready natives 51 148 585
Tree 6 — 66
Shrub 8 — 92
Wildflower (forb) 70 — 626
Grass or grass-like 27 — 278
Vine 2 — 20
Fern 3 — 37

Neighboring counties

Counties that share a ZIP code with Prowers 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
Prowers County (county FIPS 08099), Colorado. 116 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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