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Native plants · Texas

Native plants of Callahan County

102 plant species are recorded as native to Texas in Kew’s World Checklist of Vascular Plants and USDA PLANTS, and recorded in Callahan County by USDA PLANTS. 34 of them have growing records you can filter by light, moisture, height and estimated cold hardiness. 1 more species is listed as both native and introduced and kept in a separate section.

County summary · USDA PLANTS and Kew WCVP

Callahan County, Texas

Native species
102 Typical Texas county: 145 (median of 254 counties)
Garden-ready natives
34 Typical Texas county: 61
Share by type (all 102 native species)
Percent of the 102 native species in each growth type
Tree 4% (4)
Shrub 4% (4)
Wildflower (forb) 72% (73)
Grass or grass-like 19% (19)
Vine 2% (2)

Wildflowers make up the largest share of the native list (72%), followed by grasses and grass-like plants (19%).

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 8a (2023 map).

The native plant list

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

Garden-ready natives 34

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

Garden-ready native plants of Callahan County, Texas
PlantType HeightLight Water useHardy to
American water-willow Justicia americana Wildflower (forb) 2.5 ft Shade-tolerant Medium Zone 4b
Arizona cottontop Digitaria californica Grass or grass-like 4 ft Sun Low Zone 6a
blackjack oak Quercus marilandica Tree 25 ft Sun Low Zone 6a
buffalograss Bouteloua dactyloides Grass or grass-like 6 in Sun Medium Zone 3b
butterfly milkweed Asclepias tuberosa Wildflower (forb) 2 ft Sun Low Zone 4a
Carolina foxtail Alopecurus carolinianus Grass or grass-like 1.7 ft Sun Low Zone 3a
clasping coneflower Dracopis amplexicaulis Wildflower (forb) 2 ft Sun High Zone 10b
common selfheal Prunella vulgaris Wildflower (forb) 1.5 ft Sun–part shade Medium Zone 3b
dotted blazing star Liatris punctata Wildflower (forb) 2 ft Sun Medium Zone 3a
eastern narrowleaf sedge Carex amphibola Grass or grass-like 2 ft Shade-tolerant Medium Zone 7a
flatstem spikerush Eleocharis compressa Grass or grass-like 2 ft Sun High Zone 4a
fourwing saltbush Atriplex canescens Shrub 4 ft Sun Medium Zone 3a
giant goldenrod Solidago gigantea Wildflower (forb) 8.2 ft Sun–part shade Medium Zone 4a
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
grassleaf rush Juncus marginatus Grass or grass-like 2 ft Sun–part shade Medium Zone 5a
Indian blanket Gaillardia pulchella Wildflower (forb) 2 ft Sun Medium Zone 10b
inland rush Juncus interior Grass or grass-like 3 ft Sun–part shade Medium 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
lyreleaf greeneyes Berlandiera lyrata Wildflower (forb) 4 ft Sun Low Zone 5a
Nuttall's povertyweed Monolepis nuttalliana Wildflower (forb) 10 in Sun Medium Zone 12a
post oak Quercus stellata Tree 60 ft Sun Medium Zone 4a
prairie fleabane Erigeron strigosus Wildflower (forb) 3 ft Sun Medium Zone 4b
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
purpletop tridens Tridens flavus Grass or grass-like 2.5 ft Sun Low Zone 5a
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
sideoats grama Bouteloua curtipendula Grass or grass-like 3 ft Sun Medium Zone 3a
skunkbush sumac Rhus trilobata Shrub 4 ft Sun–part shade Low Zone 2a
soapweed yucca Yucca glauca Shrub 1 ft Sun Low Zone 4b
sugarberry Celtis laevigata Tree 80 ft Shade-tolerant High Zone 5a
upright prairie coneflower Ratibida columnifera Wildflower (forb) 3.1 ft Sun Medium Zone 3a

Other native species recorded here 68

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 wild carrot Daucus pusillus
  • annual buckwheat Eriogonum annuum
  • annual phlox Phlox drummondii
  • bigseed alfalfa dodder Cuscuta indecora
  • bristly scaleseed Spermolepis echinata
  • camphorweed Heterotheca subaxillaris
  • Carolina larkspur Delphinium carolinianum
  • Carolina woollywhite Hymenopappus scabiosaeus
  • crowpoison Nothoscordum bivalve
  • Cuman ragweed Ambrosia psilostachya
  • curvepod fumewort Corydalis curvisiliqua
  • Dakota mock vervain Glandularia bipinnatifida
  • diamond-flowers Stenaria nigricans
  • Engelmann's daisy Engelmannia peristenia
  • flatspine stickseed Lappula occidentalis
  • fourpoint evening primrose Oenothera rhombipetala
  • gum bully Sideroxylon lanuginosum
  • hairy pinweed Lechea mucronata
  • Heller's rosette grass Dichanthelium oligosanthes
  • Hopi tea greenthread Thelesperma megapotamicum
  • hyssopleaf sandmat Chamaesyce hyssopifolia
  • lacy tansyaster Machaeranthera pinnatifida
  • lemon beebalm Monarda citriodora
  • Louisiana vetch Vicia ludoviciana
  • narrowleaf purple coneflower Echinacea angustifolia
  • narrowleaf stoneseed Lithospermum incisum
  • neckweed Veronica peregrina
  • Nuttall's sensitive-briar Mimosa nuttallii
  • pinkladies Oenothera speciosa
  • poorjoe Diodia teres
  • prairie cupgrass Eriochloa contracta
  • prairie groundsel Packera plattensis
  • prairie spiderwort Tradescantia occidentalis
  • prairie threeawn Aristida oligantha
  • red lovegrass Eragrostis secundiflora
  • redseed plantain Plantago rhodosperma
  • ribseed sandmat Chamaesyce glyptosperma
  • roughfruit scaleseed Spermolepis divaricata
  • scarlet beeblossom Oenothera suffrutescens
  • shaggy dwarf morning-glory Evolvulus nuttallianus
  • shortstalk chickweed Cerastium brachypodum
  • showy evening primrose Oenothera grandis
  • silky prairie clover Dalea villosa
  • silverleaf nightshade Solanum elaeagnifolium
  • slender snakecotton Froelichia gracilis
  • sneezeweed Helenium amarum
  • snow on the mountain Euphorbia marginata
  • spotted beebalm Monarda punctata
  • spotted sandmat Chamaesyce maculata
  • standing-cypress Ipomopsis rubra
  • stemless evening primrose Oenothera triloba
  • stretchberry Forestiera pubescens
  • tall lespedeza Lespedeza stuevei
  • Texas croton Croton texensis
  • Texas vervain Verbena halei
  • tumblegrass Schedonnardus paniculatus
  • Virginia pepperweed Lepidium virginicum
  • Virginia tephrosia Tephrosia virginiana
  • Virginia winged rockcress Sibara virginica
  • warty spurge Euphorbia spathulata
  • wedgeleaf draba Draba cuneifolia
  • western horsenettle Solanum dimidiatum
  • western tansymustard Descurainia pinnata
  • white heath aster Symphyotrichum ericoides
  • whitemouth dayflower Commelina erecta
  • winged pigweed Cycloloma atriplicifolium
  • woolly tidestromia Tidestromia lanuginosa
  • Wright's plantain Plantago wrightiana
Also listed as native and introduced here 1

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 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, Callahan County and Texas
MeasureCallahan CountyTypical countyStatewide
Native species 102 145 1,683
Garden-ready natives 34 61 656
Tree 4 — 164
Shrub 4 — 90
Wildflower (forb) 73 — 877
Grass or grass-like 19 — 431
Vine 2 — 83
Fern 0 — 38

Neighboring counties

Counties that share a ZIP code with Callahan 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
Callahan County (county FIPS 48059), Texas. 102 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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