Native plants · Texas

Native plants of Dallam County

134 plant species are recorded as native to Texas in Kew’s World Checklist of Vascular Plants and USDA PLANTS, and recorded in Dallam County by USDA PLANTS. 61 of them have growing records you can filter by light, moisture, height and estimated cold hardiness. 2 more species are listed as both native and introduced and kept in a separate section.

County summary · USDA PLANTS and Kew WCVP

Dallam County, Texas

Native species: 134 Typical Texas county: 145 (median of 254 counties)
Garden-ready natives: 61 Typical Texas county: 61
Share by type (all 134 native species): Percent of the 134 native species in each growth type

Tree <1% (1)
Shrub 3% (4)
Wildflower (forb) 63% (85)
Grass or grass-like 31% (42)
Vine 1% (2)

Wildflowers make up the largest share of the native list (63%), followed by grasses and grass-like plants (31%).

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 6b (2023 map).

The native plant list

Garden-ready natives 61

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

Garden-ready native plants of Dallam County, Texas
Plant	Type	Height	Light	Water use	Hardy to
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
American water horehound Lycopus americanus	Wildflower (forb)	1.8 ft	Shade-tolerant	High	Zone 3b
beaked spikerush Eleocharis rostellata	Grass or grass-like	3 ft	Sun	High	Zone 4b
big bluestem Andropogon gerardii	Grass or grass-like	6 ft	Sun	Low	Zone 2b
black grama Bouteloua eriopoda	Grass or grass-like	2 ft	Sun	Low	Zone 5a
blue grama Bouteloua gracilis	Grass or grass-like	1 ft	Sun	Medium	Zone 3a
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
common spikerush Eleocharis palustris	Grass or grass-like	1.3 ft	Sun	High	Zone 3b
crested pricklypoppy Argemone polyanthemos	Wildflower (forb)	3 ft	Sun	Low	Zone 5a
dotted blazing star Liatris punctata	Wildflower (forb)	2 ft	Sun	Medium	Zone 3a
eastern cottonwood Populus deltoides	Tree	190 ft	Sun	High	Zone 3a
featherplume Dalea formosa	Shrub	3 ft	Sun	Low	Zone 6a
fiddleleaf hawksbeard Crepis runcinata	Wildflower (forb)	1 ft	Sun	Medium	Zone 3b
fox sedge Carex vulpinoidea	Grass or grass-like	3.2 ft	Sun–part shade	Medium	Zone 3b
golden crownbeard Verbesina encelioides	Wildflower (forb)	2 ft	Sun	Medium	Zone 5a
golden tickseed Coreopsis tinctoria	Wildflower (forb)	3 ft	Sun–part shade	High	Zone 12b
green prairie coneflower Ratibida tagetes	Wildflower (forb)	1 ft	Sun	Low	Zone 4b
hairy grama Bouteloua hirsuta	Grass or grass-like	6 in	Sun	Low	Zone 3b
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
inland rush Juncus interior	Grass or grass-like	3 ft	Sun–part shade	Medium	Zone 3b
James' galleta Pleuraphis jamesii	Grass or grass-like	2 ft	Sun	Low	Zone 5a
lemonscent Pectis angustifolia	Wildflower (forb)	8 in	Sun	Low	Zone 5a
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
lyreleaf greeneyes Berlandiera lyrata	Wildflower (forb)	4 ft	Sun	Low	Zone 5a
Missouri gourd Cucurbita foetidissima	Vine	1 ft	Sun	Low	Zone 5a
needle and thread Hesperostipa comata	Grass or grass-like	3 ft	Sun	Low	Zone 3b
pale evening primrose Oenothera pallida	Wildflower (forb)	2 ft	Sun	Low	Zone 3b
Pennsylvania smartweed Polygonum pensylvanicum	Wildflower (forb)	3.9 ft	Sun	Medium	Zone 10b
poverty threeawn Aristida divaricata	Grass or grass-like	1.3 ft	Sun–part shade	Low	Zone 6b
purple locoweed Oxytropis lambertii	Wildflower (forb)	1.4 ft	Sun	Low	Zone 3b
purple prairie clover Dalea purpurea	Wildflower (forb)	3 ft	Sun	Medium	Zone 3b
purple threeawn Aristida purpurea	Grass or grass-like	1.4 ft	Sun	Low	Zone 4a
rice cutgrass Leersia oryzoides	Grass or grass-like	4.9 ft	Sun	High	Zone 4a
roughfruit amaranth Amaranthus tuberculatus	Wildflower (forb)	6.6 ft	Sun	High	Zone 4a
salt heliotrope Heliotropium curassavicum	Wildflower (forb)	1.2 ft	Sun	Medium	Zone 4b
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
sand dropseed Sporobolus cryptandrus	Grass or grass-like	3 ft	Sun	Low	Zone 3b
sand lovegrass Eragrostis trichodes	Grass or grass-like	3.5 ft	Sun	Medium	Zone 5a
scarlet globemallow Sphaeralcea coccinea	Wildflower (forb)	1.5 ft	Sun	Low	Zone 5a
scratchgrass Muhlenbergia asperifolia	Grass or grass-like	2 ft	Shade-tolerant	High	Zone 5b
sideoats grama Bouteloua curtipendula	Grass or grass-like	3 ft	Sun	Medium	Zone 3a
soapweed yucca Yucca glauca	Shrub	1 ft	Sun	Low	Zone 4b
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
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
tenpetal blazingstar Mentzelia decapetala	Wildflower (forb)	3.5 ft	Sun	Medium	Zone 3b
threetooth ragwort Packera tridenticulata	Wildflower (forb)	3 ft	Sun	Medium	Zone 5a
tobosagrass Pleuraphis mutica	Grass or grass-like	2.3 ft	Sun	Low	Zone 7b
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
woolly locoweed Astragalus mollissimus	Wildflower (forb)	2 ft	Sun	Low	Zone 4b
woolly plantain Plantago patagonica	Wildflower (forb)	6 in	Sun	Low	Zone 12b

Other native species recorded here 73

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 bugseed Corispermum americanum
annual buckwheat Eriogonum annuum
bigbract verbena Verbena bracteata
buffalobur nightshade Solanum rostratum
bushy knotweed Polygonum ramosissimum
camphorweed Heterotheca subaxillaris
carelessweed Amaranthus palmeri
Carolina larkspur Delphinium carolinianum
Carolina woollywhite Hymenopappus scabiosaeus
Carruth's sagewort Artemisia carruthii
Cuman ragweed Ambrosia psilostachya
curvepod fumewort Corydalis curvisiliqua
cusp dodder Cuscuta cuspidata
Dakota mock vervain Glandularia bipinnatifida
diamond-flowers Stenaria nigricans
Engelmann's daisy Engelmannia peristenia
false boneset Brickellia eupatorioides
false buffalograss Munroa squarrosa
feather fingergrass Chloris virgata
fetid marigold Dyssodia papposa
fineleaf hymenopappus Hymenopappus filifolius
flatspine bur ragweed Ambrosia acanthicarpa
flatspine stickseed Lappula occidentalis
green comet milkweed Asclepias viridiflora
groundplum milkvetch Astragalus crassicarpus
Hopi tea greenthread Thelesperma megapotamicum
ivyleaf groundcherry Physalis hederifolia
James' cryptantha Cryptantha cinerea
kiss me quick Portulaca pilosa
lacy tansyaster Machaeranthera pinnatifida
lanceleaf sage Salvia reflexa
lemon scurfpea Psoralidium lanceolatum
longleaf groundcherry Physalis longifolia
Louisiana broomrape Orobanche ludoviciana
mat sandbur Cenchrus longispinus
narrowleaf four o'clock Mirabilis linearis
Nuttall's sensitive-briar Mimosa nuttallii
pitseed goosefoot Chenopodium berlandieri
pony beebalm Monarda pectinata
prairie groundcherry Physalis hispida
prairie sandmat Chamaesyce missurica
prairie spiderwort Tradescantia occidentalis
prairie sunflower Helianthus petiolaris
red lovegrass Eragrostis secundiflora
ribseed sandmat Chamaesyce glyptosperma
River Broom-Rape Orobanche riparia
rush skeletonplant Lygodesmia juncea
sand sagebrush Artemisia filifolia
sandhill amaranth Amaranthus arenicola
scarlet beeblossom Oenothera suffrutescens
Schweinitz's flatsedge Cyperus schweinitzii
shaggy dwarf morning-glory Evolvulus nuttallianus
showy evening primrose Oenothera grandis
silverleaf nightshade Solanum elaeagnifolium
sixweeks threeawn Aristida adscensionis
slimflower scurfpea Psoralidium tenuiflorum
snowball sand verbena Abronia fragrans
sunbright Phemeranthus parviflorus
tarragon Artemisia dracunculus
Texas croton Croton texensis
thin paspalum Paspalum setaceum
tumble windmill grass Chloris verticillata
tumblegrass Schedonnardus paniculatus
twistspine pricklypear Opuntia macrorhiza
warty caltrop Kallstroemia parviflora
wedgeleaf Phyla cuneifolia
western tansymustard Descurainia pinnata
western wallflower Erysimum asperum
whitemouth dayflower Commelina erecta
whitest evening primrose Oenothera albicaulis
winged pigweed Cycloloma atriplicifolium
witchgrass Panicum capillare
woolly sedge Carex pellita

Also listed as native and introduced here 2

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.

toothed spurgeEuphorbia dentata
white sagebrushArtemisia ludoviciana

Compared with Texas

The typical county is the median of the 254 Texas 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, Dallam County and Texas
Measure	Dallam County	Typical county	Statewide
Native species	134	145	1,683
Garden-ready natives	61	61	656
Tree	1	—	164
Shrub	4	—	90
Wildflower (forb)	85	—	877
Grass or grass-like	42	—	431
Vine	2	—	83
Fern	0	—	38

Neighboring counties

Counties that share a ZIP code with Dallam County.

Hartley County, TX 67 garden-ready
Sherman County, TX 40 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: Dallam County (county FIPS 48111), Texas. 134 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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