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 5,501–5,518 of 5,518.

• 
  Zannichellia palustris L. Native ZAPA

  horned pondweed · Zannichelliaceae 12 counties
• 
  Zantedeschia aethiopica (L.) Spreng. Introduced ZAAE

  calla lily · Araceae 1 county
• 
  Zigadenus elegans Pursh Native ZIEL2

  mountain deathcamas · Liliaceae 9 counties
• 
  Zigadenus elegans Pursh ssp. elegans Native ZIELE

  mountain deathcamas · Liliaceae 9 counties
• 
  Zigadenus fremontii (Torr.) Torr. ex S. Watson Native ZIFR

  Fremont's deathcamas · Liliaceae 3 counties
• 
  Zigadenus micranthus Eastw. Native ZIMI2

  smallflower deathcamas · Liliaceae 5 counties
• 
  Zigadenus micranthus Eastw. var. micranthus Native ZIMIM

  smallflower deathcamas · Liliaceae 5 counties
• 
  Zigadenus paniculatus (Nutt.) S. Watson Native ZIPA2

  foothill deathcamas · Liliaceae 20 counties
• 
  Zigadenus venenosus S. Watson Native ZIVE

  meadow deathcamas · Liliaceae 28 counties
• 
  Zigadenus venenosus S. Watson var. gramineus (Rydb.) Walsh ex M. Peck Native ZIVEG

  grassy deathcamas · Liliaceae 11 counties
• 
  Zigadenus venenosus S. Watson var. venenosus Native ZIVEV

  meadow deathcamas · Liliaceae 26 counties
• 
  Zizia aptera (A. Gray) Fernald Native ZIAP

  meadow zizia · Apiaceae 4 counties
• 
  Zostera marina L. Native ZOMA

  seawrack · Zosteraceae 6 counties
• ⚘
  ×Amelasorbus jackii Rehder [Amelanchier alnifolia × Sorbus scopulina] Native AMJA

  Jack's amelasorbus · Rosaceae 2 counties
• ⚘
  ×Elyhordeum macounii (Vasey) Barkworth & D.R. Dewey [Elymus trachycaulus × Hordeum jubatum] Native ELMA8

  Macoun's barley · Poaceae 11 counties
• ⚘
  ×Elyhordeum montanense (Scribn.) Bowden [Elymus virginicus × Hordeum jubatum] Native ELMO4

  mountain barley · Poaceae 1 county
• ⚘
  ×Elyleymus aristatus (Merr.) Barkworth & D.R. Dewey [Elymus elymoides × Leymus triticoides] Native ELAR6

  purple wildrye · Poaceae 1 county
• ⚘
  ×Pseudelymus saxicola (Scribn. & J.G. Sm.) Barkworth & D.R. Dewey [Elymus elymoides × Pseudoroegneria spicata] Native PSSA2

  foxtail wheatgrass · Poaceae 3 counties