Oregon

• Baker 41001
  1,572 taxa Open ↗
• Benton 41003
  1,855 taxa Open ↗
• Clackamas 41005
  1,485 taxa Open ↗
• Clatsop 41007
  979 taxa Open ↗
• Columbia 41009
  1,183 taxa Open ↗
• Coos 41011
  1,238 taxa Open ↗
• Crook 41013
  1,354 taxa Open ↗
• Curry 41015
  1,738 taxa Open ↗
• Deschutes 41017
  1,482 taxa Open ↗
• Douglas 41019
  2,250 taxa Open ↗

Showing 1,051–1,100 of 4,583 (native).

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  Chamaesyce serpyllifolia (Pers.) Small ssp. serpyllifolia Native CHSES

  thymeleaf sandmat · Euphorbiaceae 24 counties
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  Chamerion angustifolium (L.) Holub Native CHAN9

  fireweed · Onagraceae 33 counties
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  Chamerion angustifolium (L.) Holub ssp. angustifolium Native CHANA2

  fireweed · Onagraceae 1 county
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  Chamerion angustifolium (L.) Holub ssp. circumvagum (Mosquin) Hoch Native CHANC

  fireweed · Onagraceae 32 counties
• 
  Chamerion latifolium (L.) Holub Native CHLA13

  dwarf fireweed · Onagraceae 4 counties
• 
  Cheilanthes covillei Maxon Native CHCO4

  Coville's lipfern · Pteridaceae 1 county
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  Cheilanthes feei T. Moore Native CHFE

  slender lipfern · Pteridaceae 1 county
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  Cheilanthes gracillima D.C. Eaton Native CHGR

  lace lipfern · Pteridaceae 22 counties
• 
  Cheilanthes intertexta (Maxon) Maxon Native CHIN

  coastal lipfern · Pteridaceae 2 counties
• 
  Chenopodium album L. var. striatum Krašan Native CHALS2

  lateflowering goosefoot · Chenopodiaceae 1 county
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  Chenopodium atrovirens Rydb. Native CHAT

  pinyon goosefoot · Chenopodiaceae 4 counties
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  Chenopodium berlandieri Moq. Native CHBE4

  pitseed goosefoot · Chenopodiaceae 1 county
• 
  Chenopodium berlandieri Moq. var. zschackii (Murr) Murr ex Asch. Native CHBEZ

  Zschack's goosefoot · Chenopodiaceae 1 county
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  Chenopodium capitatum (L.) Asch. Native CHCA4

  blite goosefoot · Chenopodiaceae 3 counties
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  Chenopodium chenopodioides (L.) Aellen Native CHCH

  low goosefoot · Chenopodiaceae 2 counties
• 
  Chenopodium fremontii S. Watson Native CHFR3

  Fremont's goosefoot · Chenopodiaceae 9 counties
• 
  Chenopodium fremontii S. Watson var. fremontii Native CHFRF

  Fremont's goosefoot · Chenopodiaceae 9 counties
• 
  Chenopodium hians Standl. Native CHHI

  hians goosefoot · Chenopodiaceae 2 counties
• 
  Chenopodium leptophyllum (Moq.) Nutt. ex S. Watson Native CHLE4

  narrowleaf goosefoot · Chenopodiaceae 13 counties
• 
  Chenopodium nevadense Standl. Native CHNE4

  Nevada goosefoot · Chenopodiaceae 1 county
• ⚘
  Chenopodium overi Aellen Native CHOV

  Over's goosefoot · Chenopodiaceae 2 counties
• 
  Chenopodium pratericola Rydb. Native CHPR5

  desert goosefoot · Chenopodiaceae 4 counties
• 
  Chenopodium rubrum L. Native CHRU

  red goosefoot · Chenopodiaceae 5 counties
• 
  Chenopodium salinum Standl. Native CHSA2

  Rocky Mountain goosefoot · Chenopodiaceae 4 counties
• 
  Chenopodium simplex (Torr.) Raf. Native CHSI2

  mapleleaf goosefoot · Chenopodiaceae 10 counties
• 
  Chenopodium subglabrum (S. Watson) A. Nelson Native CHSU2

  smooth goosefoot · Chenopodiaceae 1 county
• 
  Chimaphila menziesii (R. Br. ex D. Don) Spreng. Native CHME

  little prince's pine · Pyrolaceae 22 counties
• 
  Chimaphila umbellata (L.) W.P.C. Barton Native CHUM

  pipsissewa · Pyrolaceae 26 counties
• 
  Chimaphila umbellata (L.) W.P.C. Barton ssp. occidentalis (Rydb.) Hultén Native CHUMO2

  pipsissewa · Pyrolaceae 26 counties
• 
  Chlorocrambe hastata (S. Watson) Rydb. Native CHHA

  spearhead · Brassicaceae 1 county
• 
  Chlorogalum angustifolium Kellogg Native CHAN2

  narrowleaf soap plant · Liliaceae 2 counties
• 
  Chlorogalum pomeridianum (DC.) Kunth Native CHPO3

  wavyleaf soap plant · Liliaceae 5 counties
• 
  Chlorogalum pomeridianum (DC.) Kunth var. pomeridianum Native CHPOP4

  wavyleaf soap plant · Liliaceae 5 counties
• 
  Chorizanthe brevicornu Torr. Native CHBR

  brittle spineflower · Polygonaceae 2 counties
• 
  Chorizanthe brevicornu Torr. var. spathulata (Small ex Rydb.) C.L. Hitchc. Native CHBRS

  brittle spineflower · Polygonaceae 2 counties
• 
  Chorizanthe membranacea Benth. Native CHME2

  pink spineflower · Polygonaceae 1 county
• 
  Chorizanthe watsonii Torr. & A. Gray Native CHWA2

  fivetooth spineflower · Polygonaceae 6 counties
• 
  Chrysolepis chrysophylla (Douglas ex Hook.) Hjelmqvist Native CHCH7

  giant chinquapin · Fagaceae 23 counties
• 
  Chrysolepis chrysophylla (Douglas ex Hook.) Hjelmqvist var. chrysophylla Native CHCHC4

  giant chinquapin · Fagaceae 23 counties
• 
  Chrysolepis chrysophylla (Douglas ex Hook.) Hjelmqvist var. minor (Benth.) Munz Native CHCHM

  giant chinquapin · Fagaceae 4 counties
• 
  Chrysolepis sempervirens (Kellogg) Hjelmqvist Native CHSE11

  bush chinquapin · Fagaceae 4 counties
• 
  Chrysosplenium glechomifolium Nutt. Native CHGL5

  Pacific golden saxifrage · Saxifragaceae 11 counties
• 
  Chrysothamnus humilis Greene Native CHHU2

  Truckee rabbitbrush · Asteraceae 6 counties
• 
  Chrysothamnus viscidiflorus (Hook.) Nutt. Native CHVI8

  yellow rabbitbrush · Asteraceae 21 counties
• 
  Chrysothamnus viscidiflorus (Hook.) Nutt. ssp. lanceolatus (Nutt.) H.M. Hall & Clem. Native CHVIL4

  yellow rabbitbrush · Asteraceae 13 counties
• 
  Chrysothamnus viscidiflorus (Hook.) Nutt. ssp. puberulus (D.C. Eaton) H.M. Hall & Clem. Native CHVIP4

  yellow rabbitbrush · Asteraceae 3 counties
• 
  Chrysothamnus viscidiflorus (Hook.) Nutt. ssp. viscidiflorus Native CHVIV2

  yellow rabbitbrush · Asteraceae 19 counties
• 
  Chrysothamnus viscidiflorus (Hook.) Nutt. ssp. viscidiflorus var. viscidiflorus Native CHVIV4

  yellow rabbitbrush · Asteraceae 14 counties
• 
  Cicendia quadrangularis (Lam.) Griseb. Native CIQU3

  Oregon timwort · Gentianaceae 4 counties
• 
  Cicuta bulbifera L. Native CIBU

  bulblet-bearing water hemlock · Apiaceae 1 county