Ellis County

Showing 1–50 of 685.

• 
  Abutilon theophrasti Medik. Introduced ABTH

  velvetleaf · Malvaceae
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  Acalypha ostryifolia Riddell Native ACOS

  pineland threeseed mercury · Euphorbiaceae
• 
  Acer negundo L. Native ACNE2

  boxelder · Aceraceae
• 
  Acer saccharinum L. Native ACSA2

  silver maple · Aceraceae
• 
  Achillea millefolium L. Both ACMI2

  common yarrow · Asteraceae
• 
  Achillea millefolium L. var. occidentalis DC. Native ACMIO

  western yarrow · Asteraceae
• 
  Acroptilon repens (L.) DC. Introduced ACRE3

  hardheads · Asteraceae
• 
  Aegilops cylindrica Host Introduced AECY

  jointed goatgrass · Poaceae
• 
  Agalinis tenuifolia (Vahl) Raf. Native AGTE3

  slenderleaf false foxglove · Scrophulariaceae
• 
  Agropyron cristatum (L.) Gaertn. Introduced AGCR

  crested wheatgrass · Poaceae
• 
  Agropyron cristatum (L.) Gaertn. ssp. pectinatum (M. Bieb.) Tzvelev Introduced AGCRP8

  crested wheatgrass · Poaceae
• 
  Ailanthus altissima (Mill.) Swingle Introduced AIAL

  tree of heaven · Simaroubaceae
• 
  Allium drummondii Regel Native ALDR

  Drummond's onion · Liliaceae
• 
  Allium perdulce S.V. Fraser Native ALPE2

  plains onion · Liliaceae
• 
  Allium perdulce S.V. Fraser var. perdulce Native ALPEP

  plains onion · Liliaceae
• 
  Alopecurus carolinianus Walter Native ALCA4

  Carolina foxtail · Poaceae
• 
  Amaranthus albus L. Introduced AMAL

  prostrate pigweed · Amaranthaceae
• 
  Amaranthus blitoides S. Watson Introduced AMBL

  mat amaranth · Amaranthaceae
• 
  Amaranthus hybridus L. Native AMHY

  slim amaranth · Amaranthaceae
• 
  Amaranthus retroflexus L. Native AMRE

  redroot amaranth · Amaranthaceae
• 
  Amaranthus spinosus L. Native AMSP

  spiny amaranth · Amaranthaceae
• 
  Amaranthus tuberculatus (Moq.) Sauer Native AMTU

  roughfruit amaranth · Amaranthaceae
• 
  Ambrosia artemisiifolia L. Both AMAR2

  annual ragweed · Asteraceae
• 
  Ambrosia artemisiifolia L. var. elatior (L.) Descourtils Introduced AMARE

  annual ragweed · Asteraceae
• 
  Ambrosia psilostachya DC. Native AMPS

  Cuman ragweed · Asteraceae
• 
  Ambrosia trifida L. Native AMTR

  great ragweed · Asteraceae
• 
  Ammannia coccinea Rottb. Native AMCO

  valley redstem · Lythraceae
• 
  Amorpha canescens Pursh Native AMCA6

  leadplant · Fabaceae
• 
  Amorpha fruticosa L. Native AMFR

  false indigo bush · Fabaceae
• 
  Andropogon gerardii Vitman Native ANGE

  big bluestem · Poaceae
• 
  Andropogon hallii Hack. Native ANHA

  sand bluestem · Poaceae
• 
  Androsace occidentalis Pursh Native ANOC2

  western rockjasmine · Primulaceae
• 
  Anemone caroliniana Walter Native ANCA9

  Carolina anemone · Ranunculaceae
• ⚘
  Antennaria neglecta Greene Native ANNE

  field pussytoes · Asteraceae
• 
  Anthemis cotula L. Introduced ANCO2

  stinking chamomile · Asteraceae
• 
  Apocynum cannabinum L. Native APCA

  Indianhemp · Apocynaceae
• 
  Arctium minus Bernh. Introduced ARMI2

  lesser burdock · Asteraceae
• 
  Arenaria serpyllifolia L. Introduced ARSE2

  thymeleaf sandwort · Caryophyllaceae
• 
  Argemone polyanthemos (Fedde) G.B. Ownbey Native ARPO2

  crested pricklypoppy · Papaveraceae
• 
  Argythamnia mercurialina (Nutt.) Müll. Arg. Native ARME5

  tall silverbush · Euphorbiaceae
• 
  Argythamnia mercurialina (Nutt.) Müll. Arg. var. mercurialina Native ARMEM

  tall silverbush · Euphorbiaceae
• 
  Aristida adscensionis L. Native ARAD

  sixweeks threeawn · Poaceae
• 
  Aristida longespica Poir. Native ARLO16

  slimspike threeawn · Poaceae
• 
  Aristida oligantha Michx. Native AROL

  prairie threeawn · Poaceae
• 
  Aristida purpurea Nutt. Native ARPU9

  purple threeawn · Poaceae
• 
  Aristida purpurea Nutt. var. longiseta (Steud.) Vasey Native ARPUL

  Fendler threeawn · Poaceae
• 
  Artemisia filifolia Torr. Native ARFI2

  sand sagebrush · Asteraceae
• 
  Artemisia ludoviciana Nutt. Both ARLU

  white sagebrush · Asteraceae
• 
  Artemisia ludoviciana Nutt. ssp. ludoviciana Native ARLUL2

  white sagebrush · Asteraceae
• 
  Asclepias asperula (Decne.) Woodson Native ASAS

  spider milkweed · Asclepiadaceae