Iowa

• Adair 19001
  393 taxa Open ↗
• Adams 19003
  200 taxa Open ↗
• Allamakee 19005
  118 taxa Open ↗
• Appanoose 19007
  38 taxa Open ↗
• Audubon 19009
  225 taxa Open ↗
• Benton 19011
  21 taxa Open ↗
• Black Hawk 19013
  33 taxa Open ↗
• Boone 19015
  146 taxa Open ↗
• Bremer 19017
  24 taxa Open ↗
• Buchanan 19019
  16 taxa Open ↗

Showing 501–550 of 2,225.

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  Chamaesyce humistrata (Engelm. ex A. Gray) Small Native CHHU3

  spreading sandmat · Euphorbiaceae 1 county
• 
  Chamaesyce maculata (L.) Small Native CHMA15

  spotted sandmat · Euphorbiaceae 26 counties
• 
  Chamaesyce nutans (Lag.) Small Native CHNU9

  eyebane · Euphorbiaceae 5 counties
• 
  Chamaesyce prostrata (Aiton) Small Native CHPR6

  prostrate sandmat · Euphorbiaceae 1 county
• 
  Chamaesyce serpens (Kunth) Small Native CHSE4

  matted sandmat · Euphorbiaceae 4 counties
• 
  Chamaesyce serpyllifolia (Pers.) Small Native CHSE6

  thymeleaf sandmat · Euphorbiaceae 7 counties
• 
  Chamaesyce serpyllifolia (Pers.) Small ssp. serpyllifolia Native CHSES

  thymeleaf sandmat · Euphorbiaceae 7 counties
• 
  Chamaesyce stictospora (Engelm.) Small Native CHST8

  slimseed sandmat · Euphorbiaceae 1 county
• 
  Chamaesyce vermiculata (Raf.) House Native CHVE5

  wormseed sandmat · Euphorbiaceae 1 county
• 
  Cheilanthes feei T. Moore Native CHFE

  slender lipfern · Pteridaceae 10 counties
• 
  Chelidonium majus L. Introduced CHMA2

  celandine · Papaveraceae 2 counties
• 
  Chelidonium majus L. var. majus Introduced CHMAM

  celandine · Papaveraceae 2 counties
• 
  Chelone glabra L. Native CHGL2

  white turtlehead · Scrophulariaceae 2 counties
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  Chelone obliqua L. Native CHOB3

  red turtlehead · Scrophulariaceae 1 county
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  Chelone obliqua L. var. speciosa Pennell & Wherry Native CHOBS

  red turtlehead · Scrophulariaceae 1 county
• 
  Chenopodium album L. Both CHAL7

  lambsquarters · Chenopodiaceae 24 counties
• 
  Chenopodium album L. var. missouriense (Aellen) I.J. Bassett & C.W. Crompton Native CHALM2

  Missouri lambsquarters · Chenopodiaceae 1 county
• 
  Chenopodium album L. var. striatum Krašan Native CHALS2

  lateflowering goosefoot · Chenopodiaceae 1 county
• 
  Chenopodium berlandieri Moq. Native CHBE4

  pitseed goosefoot · Chenopodiaceae 2 counties
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  Chenopodium berlandieri Moq. var. zschackii (Murr) Murr ex Asch. Native CHBEZ

  Zschack's goosefoot · Chenopodiaceae 2 counties
• 
  Chenopodium desiccatum A. Nelson Native CHDE

  aridland goosefoot · Chenopodiaceae 1 county
• 
  Chenopodium glaucum L. Introduced CHGL3

  oakleaf goosefoot · Chenopodiaceae 1 county
• 
  Chenopodium murale L. Introduced CHMU2

  nettleleaf goosefoot · Chenopodiaceae 1 county
• 
  Chenopodium pratericola Rydb. Native CHPR5

  desert goosefoot · Chenopodiaceae 12 counties
• 
  Chenopodium simplex (Torr.) Raf. Native CHSI2

  mapleleaf goosefoot · Chenopodiaceae 18 counties
• 
  Chenopodium standleyanum Aellen Native CHST2

  Standley's goosefoot · Chenopodiaceae 6 counties
• 
  Chenopodium urbicum L. Introduced CHUR

  city goosefoot · Chenopodiaceae 1 county
• 
  Chloris verticillata Nutt. Native CHVE2

  tumble windmill grass · Poaceae 6 counties
• 
  Chorispora tenella (Pall.) DC. Introduced CHTE2

  crossflower · Brassicaceae 2 counties
• 
  Cichorium intybus L. Introduced CIIN

  chicory · Asteraceae 11 counties
• 
  Cicuta bulbifera L. Native CIBU

  bulblet-bearing water hemlock · Apiaceae 9 counties
• 
  Cicuta maculata L. Native CIMA2

  spotted water hemlock · Apiaceae 31 counties
• 
  Cicuta maculata L. var. maculata Native CIMAM

  spotted water hemlock · Apiaceae 1 county
• 
  Cinna arundinacea L. Native CIAR2

  sweet woodreed · Poaceae 32 counties
• 
  Circaea lutetiana L. Native CILU

  broadleaf enchanter's nightshade · Onagraceae 16 counties
• 
  Circaea lutetiana L. ssp. canadensis (L.) Asch. & Magnus Native CILUC

  broadleaf enchanter's nightshade · Onagraceae 16 counties
• 
  Cirsium altissimum (L.) Hill Native CIAL2

  tall thistle · Asteraceae 23 counties
• 
  Cirsium arvense (L.) Scop. Introduced CIAR4

  Canada thistle · Asteraceae 20 counties
• 
  Cirsium canescens Nutt. Native CICA11

  prairie thistle · Asteraceae 1 county
• 
  Cirsium discolor (Muhl. ex Willd.) Spreng. Native CIDI

  field thistle · Asteraceae 10 counties
• 
  Cirsium flodmanii (Rydb.) Arthur Native CIFL

  Flodman's thistle · Asteraceae 13 counties
• ⚘
  Cirsium hillii (Canby) Fernald Native CIHI

  Hill's thistle · Asteraceae 2 counties
• 
  Cirsium undulatum (Nutt.) Spreng. Native CIUN

  wavyleaf thistle · Asteraceae 1 county
• 
  Cirsium undulatum (Nutt.) Spreng. var. undulatum Native CIUNU

  wavyleaf thistle · Asteraceae 1 county
• 
  Cirsium vulgare (Savi) Ten. Introduced CIVU

  bull thistle · Asteraceae 9 counties
• 
  Claytonia virginica L. Native CLVI3

  Virginia springbeauty · Portulacaceae 12 counties
• 
  Claytonia virginica L. var. virginica Native CLVIV

  Virginia springbeauty · Portulacaceae 11 counties
• 
  Claytonia virginica L. var. virginica f. virginica Native CLVIV2

  Virginia springbeauty · Portulacaceae 11 counties
• 
  Clematis pitcheri Torr. & A. Gray Native CLPI

  bluebill · Ranunculaceae 8 counties
• 
  Clematis pitcheri Torr. & A. Gray var. pitcheri Native CLPIP

  bluebill · Ranunculaceae 8 counties