Willacy County

Showing 1–50 of 546.

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  Abutilon berlandieri A. Gray ex S. Watson Native ABBE

  Berlandier's Indian mallow · Malvaceae
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  Acalypha radians Torr. Native ACRA

  cardinal's feather · Euphorbiaceae
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  Acanthocereus tetragonus (L.) Humm. Native ACTE4

  triangle cactus · Cactaceae
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  Acleisanthes obtusa (Choisy) Standl. Native ACOB2

  Berlandier's trumpets · Nyctaginaceae
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  Adelia vaseyi (J.M. Coult.) Pax & K. Hoffm. Native ADVA

  Vasey's wild lime · Euphorbiaceae
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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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  Allium runyonii Ownbey Native ALRU

  Runyon'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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  Aloysia gratissima (Gillies & Hook.) Troncoso Native ALGR2

  whitebrush · Verbenaceae
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  Alternanthera paronychioides A. St.-Hil. Both ALPA17

  smooth joyweed · Amaranthaceae
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  Alternanthera paronychioides A. St.-Hil. var. paronychioides Native ALPAP

  smooth joyweed · Amaranthaceae
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  Amaranthus arenicola I.M. Johnst. Native AMAR

  sandhill amaranth · Amaranthaceae
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  Amaranthus blitoides S. Watson Introduced AMBL

  mat amaranth · Amaranthaceae
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  Amaranthus crassipes Schltdl. Both AMCR

  spreading amaranth · Amaranthaceae
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  Amaranthus crassipes Schltdl. var. crassipes Introduced AMCRC

  spreading amaranth · Amaranthaceae
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  Amaranthus greggii S. Watson Native AMGR2

  Gregg's amaranth · Amaranthaceae
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  Amaranthus palmeri S. Watson Native AMPA

  carelessweed · Amaranthaceae
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  Amaranthus polygonoides L. Native AMPO

  tropical amaranth · Amaranthaceae
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  Amblyolepis setigera DC. Native AMSE

  huisache daisy · Asteraceae
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  Ambrosia psilostachya DC. Native AMPS

  Cuman ragweed · Asteraceae
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  Ammannia coccinea Rottb. Native AMCO

  valley redstem · Lythraceae
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  Amphiachyris dracunculoides (DC.) Nutt. Native AMDR

  prairie broomweed · Asteraceae
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  Amyris madrensis S. Watson Native AMMA3

  mountain torchwood · Rutaceae
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  Amyris texana (Buckley) P. Wilson Native AMTE4

  Texas torchwood · Rutaceae
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  Anagallis minima (L.) Krause Native ANMI4

  chaffweed · Primulaceae
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  Andropogon glomeratus (Walter) Britton, Sterns & Poggenb. Native ANGL2

  bushy bluestem · Poaceae
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  Aphanostephus skirrhobasis (DC.) Trel. Native APSK

  Arkansas dozedaisy · Asteraceae
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  Aphanostephus skirrhobasis (DC.) Trel. var. skirrhobasis Native APSKS

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

  Arkansas dozedaisy · Asteraceae
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  Argemone sanguinea Greene Native ARSA4

  red pricklypoppy · Papaveraceae
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  Aristida longespica Poir. Native ARLO16

  slimspike threeawn · Poaceae
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  Aristida purpurea Nutt. Native ARPU9

  purple threeawn · Poaceae
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  Aristida purpurea Nutt. var. nealleyi (Vasey) Allred Native ARPUN

  blue threeawn · Poaceae
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  Asclepias oenotheroides Cham. & Schltdl. Native ASOE

  zizotes milkweed · Asclepiadaceae
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  Astragalus leptocarpus Torr. & A. Gray Native ASLE10

  rare loco milkvetch · Fabaceae
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  Atriplex cristata Humb. & Bonpl. ex Willd. Native ATCR2

  crested saltbush · Chenopodiaceae
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  Atriplex matamorensis A. Nelson Native ATMA

  Matamoros saltbush · Chenopodiaceae
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  Ayenia limitaris Cristobal Native AYLI

  Rio Grande ayenia · Sterculiaceae
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  Ayenia pilosa Cristobal Native AYPI

  hairy ayenia · Sterculiaceae
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  Bacopa monnieri (L.) Pennell Native BAMO

  herb of grace · Scrophulariaceae
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  Baptisia bracteata Muhl. ex Elliott Native BABR2

  longbract wild indigo · Fabaceae
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  Baptisia bracteata Muhl. ex Elliott var. leucophaea (Nutt.) Kartesz & Gandhi Native BABRL2

  longbract wild indigo · Fabaceae
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  Bastardia viscosa (L.) Kunth Native BAVI4

  viscid mallow · Malvaceae
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  Bastardia viscosa (L.) Kunth var. viscosa Native BAVIV

  viscid mallow · Malvaceae