Linn County

Showing 201–250 of 895.

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  Chenopodium album L. Both CHAL7

  lambsquarters · Chenopodiaceae
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  Chenopodium berlandieri Moq. Native CHBE4

  pitseed goosefoot · Chenopodiaceae
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  Chenopodium pallescens Standl. Native CHPA5

  slimleaf goosefoot · Chenopodiaceae
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  Chenopodium pratericola Rydb. Native CHPR5

  desert goosefoot · Chenopodiaceae
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  Chenopodium simplex (Torr.) Raf. Native CHSI2

  mapleleaf goosefoot · Chenopodiaceae
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  Chenopodium standleyanum Aellen Native CHST2

  Standley's goosefoot · Chenopodiaceae
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  Chloris verticillata Nutt. Native CHVE2

  tumble windmill grass · Poaceae
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  Cichorium intybus L. Introduced CIIN

  chicory · Asteraceae
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  Cicuta maculata L. Native CIMA2

  spotted water hemlock · Apiaceae
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  Cinna arundinacea L. Native CIAR2

  sweet woodreed · Poaceae
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  Circaea lutetiana L. Native CILU

  broadleaf enchanter's nightshade · Onagraceae
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  Circaea lutetiana L. ssp. canadensis (L.) Asch. & Magnus Native CILUC

  broadleaf enchanter's nightshade · Onagraceae
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  Cirsium altissimum (L.) Hill Native CIAL2

  tall thistle · Asteraceae
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  Cirsium undulatum (Nutt.) Spreng. Native CIUN

  wavyleaf thistle · Asteraceae
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  Cirsium undulatum (Nutt.) Spreng. var. undulatum Native CIUNU

  wavyleaf thistle · Asteraceae
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  Cirsium vulgare (Savi) Ten. Introduced CIVU

  bull thistle · Asteraceae
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  Claytonia virginica L. Native CLVI3

  Virginia springbeauty · Portulacaceae
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  Claytonia virginica L. var. virginica Native CLVIV

  Virginia springbeauty · Portulacaceae
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  Claytonia virginica L. var. virginica f. virginica Native CLVIV2

  Virginia springbeauty · Portulacaceae
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  Clematis pitcheri Torr. & A. Gray Native CLPI

  bluebill · Ranunculaceae
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  Clematis pitcheri Torr. & A. Gray var. pitcheri Native CLPIP

  bluebill · Ranunculaceae
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  Commelina diffusa Burm. f. Native CODI5

  climbing dayflower · Commelinaceae
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  Commelina diffusa Burm. f. var. diffusa Native CODID3

  climbing dayflower · Commelinaceae
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  Commelina erecta L. Native COER

  whitemouth dayflower · Commelinaceae
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  Commelina erecta L. var. erecta Native COERE

  whitemouth dayflower · Commelinaceae
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  Commelina virginica L. Native COVI3

  Virginia dayflower · Commelinaceae
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  Conium maculatum L. Introduced COMA2

  poison hemlock · Apiaceae
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  Convolvulus arvensis L. Introduced COAR4

  field bindweed · Convolvulaceae
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  Conyza canadensis (L.) Cronquist Native COCA5

  Canadian horseweed · Asteraceae
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  Conyza canadensis (L.) Cronquist var. canadensis Native COCAC3

  Canadian horseweed · Asteraceae
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  Conyza ramosissima Cronquist Native CORA4

  dwarf horseweed · Asteraceae
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  Corallorhiza odontorhiza (Willd.) Poir. Native COOD7

  autumn coralroot · Orchidaceae
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  Corallorhiza odontorhiza (Willd.) Poir. var. odontorhiza Native COODO2

  autumn coralroot · Orchidaceae
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  Corallorhiza wisteriana Conrad Native COWI5

  spring coralroot · Orchidaceae
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  Coreopsis grandiflora Hogg ex Sweet Native COGR5

  largeflower tickseed · Asteraceae
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  Coreopsis grandiflora Hogg ex Sweet var. harveyana (A. Gray) Sherff Native COGRH

  largeflower tickseed · Asteraceae
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  Coreopsis palmata Nutt. Native COPA10

  stiff tickseed · Asteraceae
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  Coreopsis tinctoria Nutt. Native COTI3

  golden tickseed · Asteraceae
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  Coreopsis tinctoria Nutt. var. tinctoria Native COTIT

  golden tickseed · Asteraceae
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  Cornus drummondii C.A. Mey. Native CODR

  roughleaf dogwood · Cornaceae
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  Cornus obliqua Raf. Native COOB9

  silky dogwood · Cornaceae
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  Corydalis flavula (Raf.) DC. Native COFL3

  yellow fumewort · Fumariaceae
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  Corylus americana Walter Native COAM3

  American hazelnut · Betulaceae
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  Crataegus crus-galli L. Native CRCR2

  cockspur hawthorn · Rosaceae
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  Crataegus mollis Scheele Native CRMO2

  downy hawthorn · Rosaceae
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  Crataegus viridis L. Native CRVI2

  green hawthorn · Rosaceae
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  Crataegus viridis L. var. viridis Native CRVIV2

  green hawthorn · Rosaceae
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  Crotalaria sagittalis L. Native CRSA4

  arrowhead rattlebox · Fabaceae
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  Croton capitatus Michx. Native CRCA6

  hogwort · Euphorbiaceae
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  Croton capitatus Michx. var. capitatus Native CRCAC2

  hogwort · Euphorbiaceae