Calhoun County

Showing 1–50 of 586.

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  Abutilon fruticosum Guill. & Perr. Native ABFR3

  Texas Indian mallow · Malvaceae
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  Acleisanthes obtusa (Choisy) Standl. Native ACOB2

  Berlandier's trumpets · Nyctaginaceae
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  Acmella oppositifolia (Lam.) R.K. Jansen Native ACOP

  oppositeleaf spotflower · Asteraceae
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  Acmella oppositifolia (Lam.) R.K. Jansen var. repens (Walter) R.K. Jansen Native ACOPR

  oppositeleaf spotflower · Asteraceae
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  Agalinis fasciculata (Elliott) Raf. Native AGFA2

  beach false foxglove · Scrophulariaceae
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  Agalinis heterophylla (Nutt.) Small ex Britton Native AGHE4

  prairie false foxglove · Scrophulariaceae
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  Agalinis maritima (Raf.) Raf. Native AGMA3

  saltmarsh false foxglove · Scrophulariaceae
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  Agalinis maritima (Raf.) Raf. var. grandiflora (Benth.) Shinners Native AGMAG

  saltmarsh false foxglove · Scrophulariaceae
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  Agalinis strictifolia (Benth.) Pennell Native AGST4

  stiffleaf false foxglove · Scrophulariaceae
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  Agrostis hyemalis (Walter) Britton, Sterns & Poggenb. Native AGHY

  winter bentgrass · Poaceae
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  Allium drummondii Regel Native ALDR

  Drummond's onion · Liliaceae
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  Allowissadula lozanii (Rose) D.M. Bates Native ALLO2

  Lozano's false Indianmallow · Malvaceae
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  Alophia drummondii (Graham) R.C. Foster Native ALDR2

  propeller flower · Iridaceae
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  Amaranthus albus L. Introduced AMAL

  prostrate pigweed · Amaranthaceae
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  Amaranthus blitum L. Introduced AMBL2

  purple amaranth · Amaranthaceae
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  Ambrosia psilostachya DC. Native AMPS

  Cuman ragweed · Asteraceae
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  Ammi majus L. Introduced AMMA

  large bullwort · Apiaceae
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  Amphiachyris dracunculoides (DC.) Nutt. Native AMDR

  prairie broomweed · Asteraceae
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  Amsonia repens Shinners Native AMRE3

  creeping bluestar · Apocynaceae
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  Amyris texana (Buckley) P. Wilson Native AMTE4

  Texas torchwood · Rutaceae
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  Anagallis arvensis L. Introduced ANAR

  scarlet pimpernel · Primulaceae
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  Anagallis arvensis L. ssp. arvensis Introduced ANARA7

  scarlet pimpernel · Primulaceae
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  Andropogon gerardii Vitman Native ANGE

  big bluestem · Poaceae
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  Andropogon glomeratus (Walter) Britton, Sterns & Poggenb. Native ANGL2

  bushy bluestem · Poaceae
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  Andropogon ternarius Michx. Native ANTE2

  splitbeard bluestem · Poaceae
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  Andropogon ternarius Michx. var. ternarius Native ANTET

  splitbeard bluestem · Poaceae
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  Anemone berlandieri Pritz. Native ANBE

  tenpetal thimbleweed · Ranunculaceae
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  Aphanostephus skirrhobasis (DC.) Trel. Native APSK

  Arkansas dozedaisy · Asteraceae
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  Aphanostephus skirrhobasis (DC.) Trel. var. thalassius Shinners Native APSKT

  Arkansas dozedaisy · Asteraceae
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  Argemone albiflora Hornem. Native ARAL3

  bluestem pricklypoppy · Papaveraceae
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  Argemone albiflora Hornem. ssp. texana G.B. Ownbey Native ARALT

  bluestem pricklypoppy · Papaveraceae
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  Argemone sanguinea Greene Native ARSA4

  red pricklypoppy · Papaveraceae
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  Argythamnia humilis (Engelm. & A. Gray) Müll. Arg. Native ARHU5

  low silverbush · Euphorbiaceae
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  Aristida longespica Poir. Native ARLO16

  slimspike threeawn · Poaceae
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  Aristida purpurascens Poir. Native ARPU8

  arrowfeather threeawn · Poaceae
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  Aristolochia erecta L. Native ARER

  swanflower · Aristolochiaceae
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  Asclepias linearis Scheele Native ASLI

  slim milkweed · Asclepiadaceae
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  Asclepias oenotheroides Cham. & Schltdl. Native ASOE

  zizotes milkweed · Asclepiadaceae
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  Asclepias viridiflora Raf. Native ASVI

  green comet milkweed · Asclepiadaceae
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  Asclepias viridis Walter Native ASVI2

  green antelopehorn · Asclepiadaceae
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  Astragalus leptocarpus Torr. & A. Gray Native ASLE10

  rare loco milkvetch · Fabaceae
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  Astranthium integrifolium (Michx.) Nutt. Native ASIN9

  entireleaf western daisy · Asteraceae
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  Astranthium integrifolium (Michx.) Nutt. ssp. ciliatum (Raf.) DeJong Native ASINC

  entireleaf western daisy · Asteraceae
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  Atriplex matamorensis A. Nelson Native ATMA

  Matamoros saltbush · Chenopodiaceae
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  Avicennia germinans (L.) L. Native AVGE

  black mangrove · Verbenaceae
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  Axonopus fissifolius (Raddi) Kuhlm. Native AXFI

  common carpetgrass · Poaceae
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  Axonopus furcatus (Flueggé) Hitchc. Native AXFU

  big carpetgrass · Poaceae
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  Baccharis halimifolia L. Native BAHA

  eastern baccharis · Asteraceae
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  Baccharis neglecta Britton Native BANE2

  Rooseveltweed · Asteraceae
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  Baccharis texana (Torr. & A. Gray) A. Gray Native BATE

  prairie false willow · Asteraceae