Jefferson County

Showing 1–50 of 295.

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  Abronia mellifera Douglas ex Hook. Native ABME

  white sand verbena · Nyctaginaceae
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  Acer glabrum Torr. Native ACGL

  Rocky Mountain maple · Aceraceae
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  Acer glabrum Torr. var. glabrum Native ACGLG2

  Rocky Mountain maple · Aceraceae
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  Acer negundo L. Native ACNE2

  boxelder · Aceraceae
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  Acer negundo L. var. interius (Britton) Sarg. Native ACNEI2

  boxelder · Aceraceae
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  Achnatherum hymenoides (Roem. & Schult.) Barkworth Native ACHY

  Indian ricegrass · Poaceae
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  Acroptilon repens (L.) DC. Introduced ACRE3

  hardheads · Asteraceae
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  Agropyron cristatum (L.) Gaertn. Introduced AGCR

  crested wheatgrass · Poaceae
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  Agropyron cristatum (L.) Gaertn. ssp. pectinatum (M. Bieb.) Tzvelev Introduced AGCRP8

  crested wheatgrass · Poaceae
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  Agrostis stolonifera L. Introduced AGST2

  creeping bentgrass · Poaceae
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  Allium textile A. Nelson & J.F. Macbr. Native ALTE

  textile onion · Liliaceae
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  Alnus viridis (Chaix) DC. Native ALVI5

  green alder · Betulaceae
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  Alnus viridis (Chaix) DC. ssp. sinuata (Regel) Á. Löve & D. Löve Native ALVIS

  Sitka alder · Betulaceae
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  Apocynum androsaemifolium L. Native APAN2

  spreading dogbane · Apocynaceae
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  Aristida purpurea Nutt. Native ARPU9

  purple threeawn · Poaceae
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  Aristida purpurea Nutt. var. longiseta (Steud.) Vasey Native ARPUL

  Fendler threeawn · Poaceae
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  Artemisia ludoviciana Nutt. Both ARLU

  white sagebrush · Asteraceae
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  Artemisia ludoviciana Nutt. ssp. candicans (Rydb.) D.D. Keck Native ARLUC8

  white sagebrush · Asteraceae
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  Artemisia nova A. Nelson Native ARNO4

  black sagebrush · Asteraceae
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  Artemisia tridentata Nutt. Native ARTR2

  big sagebrush · Asteraceae
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  Artemisia tridentata Nutt. ssp. tridentata Native ARTRT

  basin big sagebrush · Asteraceae
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  Asclepias speciosa Torr. Native ASSP

  showy milkweed · Asclepiadaceae
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  Asperugo procumbens L. Introduced ASPR

  German-madwort · Boraginaceae
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  Astragalus argophyllus Nutt. Native ASAR4

  silverleaf milkvetch · Fabaceae
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  Astragalus calycosus Torr. ex S. Watson Native ASCA9

  Torrey's milkvetch · Fabaceae
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  Astragalus calycosus Torr. ex S. Watson var. calycosus Native ASCAC5

  Torrey's milkvetch · Fabaceae
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  Astragalus canadensis L. Native ASCA11

  Canadian milkvetch · Fabaceae
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  Astragalus canadensis L. var. brevidens (Gandog.) Barneby Native ASCAB

  shorttooth Canadian milkvetch · Fabaceae
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  Astragalus ceramicus Sheldon Native ASCE

  painted milkvetch · Fabaceae
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  Astragalus ceramicus Sheldon var. apus Barneby Native ASCEA

  painted milkvetch · Fabaceae
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  Astragalus convallarius Greene Native ASCO12

  lesser rushy milkvetch · Fabaceae
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  Astragalus convallarius Greene var. convallarius Native ASCOC9

  lesser rushy milkvetch · Fabaceae
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  Astragalus filipes Torr. ex A. Gray Native ASFI

  basalt milkvetch · Fabaceae
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  Astragalus geyeri A. Gray Native ASGE

  Geyer's milkvetch · Fabaceae
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  Astragalus geyeri A. Gray var. geyeri Native ASGEG

  Geyer's milkvetch · Fabaceae
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  Astragalus lentiginosus Douglas ex Hook. Native ASLE8

  freckled milkvetch · Fabaceae
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  Astragalus lentiginosus Douglas ex Hook. var. salinus (Howell) Barneby Native ASLES

  salty loco milkvetch · Fabaceae
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  Astragalus miser Douglas ex Hook. Native ASMI9

  timber milkvetch · Fabaceae
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  Astragalus miser Douglas ex Hook. var. tenuifolius (Nutt.) Barneby Native ASMIT

  timber milkvetch · Fabaceae
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  Astragalus tenellus Pursh Native ASTE5

  looseflower milkvetch · Fabaceae
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  Atriplex canescens (Pursh) Nutt. Native ATCA2

  fourwing saltbush · Chenopodiaceae
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  Atriplex canescens (Pursh) Nutt. var. canescens Native ATCAC

  fourwing saltbush · Chenopodiaceae
• ⚘
  Atriplex falcata (M.E. Jones) Standl. Native ATFA

  sickle saltbush · Chenopodiaceae
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  Avena sativa L. Introduced AVSA

  common oat · Poaceae
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  Balsamorhiza hookeri (Hook.) Nutt. Native BAHO

  Hooker's balsamroot · Asteraceae
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  Bolboschoenus maritimus (L.) Palla Native BOMA7

  cosmopolitan bulrush · Cyperaceae
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  Brickellia microphylla (Nutt.) A. Gray Native BRMI

  littleleaf brickellbush · Asteraceae
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  Brickellia microphylla (Nutt.) A. Gray var. scabra A. Gray Native BRMIS

  rough brickellbush · Asteraceae
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  Bromus tectorum L. Introduced BRTE

  cheatgrass · Poaceae
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  Bryonia alba L. Introduced BRAL4

  white bryony · Cucurbitaceae