Knox County

Showing 101–150 of 1,348.

• 
  Artemisia biennis Willd. var. biennis Introduced ARBIB

  biennial wormwood · Asteraceae
• 
  Artemisia ludoviciana Nutt. Both ARLU

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

  white sagebrush · Asteraceae
• 
  Aruncus dioicus (Walter) Fernald Both ARDI8

  bride's feathers · Rosaceae
• 
  Asclepias incarnata L. Native ASIN

  swamp milkweed · Asclepiadaceae
• 
  Asclepias syriaca L. Native ASSY

  common milkweed · Asclepiadaceae
• 
  Asparagus officinalis L. Introduced ASOF

  garden asparagus · Liliaceae
• 
  Asplenium platyneuron (L.) Britton, Sterns & Poggenb. Native ASPL

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

  ebony spleenwort · Aspleniaceae
• 
  Asplenium trichomanes L. Native ASTR2

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

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

  subarctic ladyfern · Dryopteridaceae
• 
  Atriplex glabriuscula Edmondston Native ATGL

  Scotland orache · Chenopodiaceae
• 
  Atriplex patula L. Introduced ATPA4

  spear saltbush · Chenopodiaceae
• 
  Atriplex prostrata Bouchér ex DC. Native ATPR

  triangle orache · Chenopodiaceae
• 
  Aureolaria flava (L.) Farw. Native AUFL

  smooth yellow false foxglove · Scrophulariaceae
• 
  Aureolaria flava (L.) Farw. var. flava Native AUFLF

  smooth yellow false foxglove · Scrophulariaceae
• 
  Aureolaria pedicularia (L.) Raf. Native AUPE2

  fernleaf yellow false foxglove · Scrophulariaceae
• 
  Aureolaria pedicularia (L.) Raf. var. pedicularia Native AUPEP

  fernleaf yellow false foxglove · Scrophulariaceae
• 
  Avena fatua L. Introduced AVFA

  wild oat · Poaceae
• 
  Avena sativa L. Introduced AVSA

  common oat · Poaceae
• 
  Barbarea vulgaris W.T. Aiton Introduced BAVU

  garden yellowrocket · Brassicaceae
• 
  Bartonia paniculata (Michx.) Muhl. Native BAPA2

  twining screwstem · Gentianaceae
• 
  Bartonia virginica (L.) Britton, Sterns & Poggenb. Native BAVI3

  yellow screwstem · Gentianaceae
• 
  Berberis thunbergii DC. Introduced BETH

  Japanese barberry · Berberidaceae
• 
  Berberis vulgaris L. Introduced BEVU

  common barberry · Berberidaceae
• 
  Berteroa incana (L.) DC. Introduced BEIN2

  hoary alyssum · Brassicaceae
• 
  Betula alleghaniensis Britton Native BEAL2

  yellow birch · Betulaceae
• 
  Betula lenta L. Native BELE

  sweet birch · Betulaceae
• 
  Betula papyrifera Marshall Native BEPA

  paper birch · Betulaceae
• 
  Betula papyrifera Marshall var. cordifolia (Regel) Fernald Native BEPAC2

  mountain paper birch · Betulaceae
• 
  Betula pendula Roth Introduced BEPE3

  European white birch · Betulaceae
• 
  Betula populifolia Marshall Native BEPO

  gray birch · Betulaceae
• ⚘
  Betula ×caerulea Blanch. (pro sp.) [populifolia × papyrifera var. cordifolia] Native BECA4

  blue birch · Betulaceae
• 
  Bidens beckii Torr. ex Spreng. Native BIBE2

  Beck's water-marigold · Asteraceae
• 
  Bidens cernua L. Native BICE

  nodding beggartick · Asteraceae
• 
  Bidens frondosa L. Native BIFR

  devil's beggartick · Asteraceae
• 
  Bidens tripartita L. Native BITR

  threelobe beggarticks · Asteraceae
• 
  Boehmeria cylindrica (L.) Sw. Native BOCY

  smallspike false nettle · Urticaceae
• 
  Bolboschoenus fluviatilis (Torr.) Soják Native BOFL3

  river bulrush · Cyperaceae
• 
  Bolboschoenus maritimus (L.) Palla Native BOMA7

  cosmopolitan bulrush · Cyperaceae
• 
  Botrychium dissectum Spreng. Native BODI2

  cutleaf grapefern · Ophioglossaceae
• 
  Botrychium matricariifolium (A. Braun ex Dowell) A. Braun ex W.D.J. Koch Native BOMA2

  matricary grapefern · Ophioglossaceae
• 
  Botrychium multifidum (S.G. Gmel.) Trevis. Native BOMU

  leathery grapefern · Ophioglossaceae
• 
  Brachyelytrum aristosum (Michx.) Trel. Native BRAR9

  northern shorthusk · Poaceae
• 
  Brassica juncea (L.) Czern. Introduced BRJU

  brown mustard · Brassicaceae
• 
  Brassica nigra (L.) W.D.J. Koch Introduced BRNI

  black mustard · Brassicaceae
• 
  Brassica rapa L. Introduced BRRA

  field mustard · Brassicaceae
• 
  Brassica rapa L. var. rapa Introduced BRRAR

  field mustard · Brassicaceae
• 
  Bromus ciliatus L. Native BRCI2

  fringed brome · Poaceae