Butler County

Showing 51–100 of 850.

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  Antennaria solitaria Rydb. Native ANSO

  singlehead pussytoes · Asteraceae
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  Anthemis cotula L. Introduced ANCO2

  stinking chamomile · Asteraceae
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  Apios americana Medik. Native APAM

  groundnut · Fabaceae
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  Apocynum cannabinum L. Native APCA

  Indianhemp · Apocynaceae
• 
  Arabis glabra (L.) Bernh. Native ARGL

  tower rockcress · Brassicaceae
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  Arabis hirsuta (L.) Scop. Native ARHI

  hairy rockcress · Brassicaceae
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  Arabis hirsuta (L.) Scop. var. pycnocarpa (M. Hopkins) Rollins Native ARHIP

  creamflower rockcress · Brassicaceae
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  Arabis laevigata (Muhl. ex Willd.) Poir. Native ARLA

  smooth rockcress · Brassicaceae
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  Arabis laevigata (Muhl. ex Willd.) Poir. var. laevigata Native ARLAL

  smooth rockcress · Brassicaceae
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  Arabis lyrata L. Native ARLY2

  lyrate rockcress · Brassicaceae
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  Arabis shortii (Fernald) Gleason Native ARSH2

  Short's rockcress · Brassicaceae
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  Aralia racemosa L. Native ARRA

  American spikenard · Araliaceae
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  Aralia racemosa L. ssp. racemosa Native ARRAR

  American spikenard · Araliaceae
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  Aralia spinosa L. Native ARSP2

  devil's walkingstick · Araliaceae
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  Arctium minus Bernh. Introduced ARMI2

  lesser burdock · Asteraceae
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  Arenaria serpyllifolia L. Introduced ARSE2

  thymeleaf sandwort · Caryophyllaceae
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  Arisaema dracontium (L.) Schott Native ARDR3

  green dragon · Araceae
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  Arisaema triphyllum (L.) Schott Native ARTR

  Jack in the pulpit · Araceae
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  Arisaema triphyllum (L.) Schott ssp. triphyllum Native ARTRT3

  Jack in the pulpit · Araceae
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  Armoracia rusticana G. Gaertn., B. Mey. & Scherb. Introduced ARRU4

  horseradish · Brassicaceae
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  Arnoglossum atriplicifolium (L.) H. Rob. Native ARAT

  pale Indian plantain · Asteraceae
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  Arnoglossum reniforme (Hook.) H. Rob. Native ARRE6

  great Indian plantain · Asteraceae
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  Artemisia annua L. Introduced ARAN3

  sweet sagewort · Asteraceae
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  Asarum canadense L. Native ASCA

  Canadian wildginger · Aristolochiaceae
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  Asclepias incarnata L. Native ASIN

  swamp milkweed · Asclepiadaceae
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  Asclepias incarnata L. ssp. incarnata Native ASINI

  swamp milkweed · Asclepiadaceae
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  Asclepias purpurascens L. Native ASPU2

  purple milkweed · Asclepiadaceae
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  Asclepias quadrifolia Jacq. Native ASQU

  fourleaf milkweed · Asclepiadaceae
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  Asclepias syriaca L. Native ASSY

  common milkweed · Asclepiadaceae
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  Asclepias tuberosa L. Native ASTU

  butterfly milkweed · Asclepiadaceae
• 
  Asimina triloba (L.) Dunal Native ASTR

  pawpaw · Annonaceae
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  Asplenium platyneuron (L.) Britton, Sterns & Poggenb. Native ASPL

  ebony spleenwort · Aspleniaceae
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  Asplenium platyneuron (L.) Britton, Sterns & Poggenb. var. platyneuron Native ASPLP

  ebony spleenwort · Aspleniaceae
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  Athyrium filix-femina (L.) Roth Native ATFI

  common ladyfern · Dryopteridaceae
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  Athyrium filix-femina (L.) Roth ssp. angustum (Willd.) R.T. Clausen Native ATFIA

  subarctic ladyfern · Dryopteridaceae
• 
  Atriplex prostrata Bouchér ex DC. Native ATPR

  triangle orache · Chenopodiaceae
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  Barbarea vulgaris W.T. Aiton Introduced BAVU

  garden yellowrocket · Brassicaceae
• 
  Berteroa incana (L.) DC. Introduced BEIN2

  hoary alyssum · Brassicaceae
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  Bidens bipinnata L. Native BIBI7

  Spanish needles · Asteraceae
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  Bidens cernua L. Native BICE

  nodding beggartick · Asteraceae
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  Bidens coronata (L.) Britton Native BICO

  crowned beggarticks · Asteraceae
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  Bidens frondosa L. Native BIFR

  devil's beggartick · Asteraceae
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  Bidens pilosa L. Introduced BIPI

  hairy beggarticks · Asteraceae
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  Bidens tripartita L. Native BITR

  threelobe beggarticks · Asteraceae
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  Blephilia ciliata (L.) Benth. Native BLCI

  downy pagoda-plant · Lamiaceae
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  Blephilia hirsuta (Pursh) Benth. Native BLHI

  hairy pagoda-plant · Lamiaceae
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  Blephilia hirsuta (Pursh) Benth. var. hirsuta Native BLHIH

  hairy pagoda-plant · Lamiaceae
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  Botrychium dissectum Spreng. Native BODI2

  cutleaf grapefern · Ophioglossaceae
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  Botrychium virginianum (L.) Sw. Native BOVI

  rattlesnake fern · Ophioglossaceae
• 
  Brassica juncea (L.) Czern. Introduced BRJU

  brown mustard · Brassicaceae