Wasco County

Showing 1,401–1,450 of 1,534.

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  Symphyotrichum frondosum (Nutt.) G.L. Nesom Native SYFR2

  short-rayed alkali aster · Asteraceae
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  Symphyotrichum hallii (A. Gray) G.L. Nesom Native SYHA

  Hall's aster · Asteraceae
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  Symphyotrichum spathulatum (Lindl.) G.L. Nesom Native SYSP

  western mountain aster · Asteraceae
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  Symphyotrichum spathulatum (Lindl.) G.L. Nesom var. spathulatum Native SYSPS

  western mountain aster · Asteraceae
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  Symphyotrichum subspicatum (Nees) G.L. Nesom Native SYSU4

  Douglas aster · Asteraceae
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  Symphyotrichum subspicatum (Nees) G.L. Nesom var. grayi (Suksd.) G.L. Nesom Native SYSUG

  Gray's aster · Asteraceae
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  Symphyotrichum subspicatum (Nees) G.L. Nesom var. subspicatum Native SYSUS

  Douglas aster · Asteraceae
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  Taeniatherum caput-medusae (L.) Nevski Introduced TACA8

  medusahead · Poaceae
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  Taraxacum officinale F.H. Wigg. Both TAOF

  common dandelion · Asteraceae
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  Taxus brevifolia Nutt. Native TABR2

  Pacific yew · Taxaceae
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  Tellima grandiflora (Pursh) Douglas ex Lindl. Native TEGR2

  bigflower tellima · Saxifragaceae
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  Tetradymia canescens DC. Native TECA2

  spineless horsebrush · Asteraceae
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  Tetradymia glabrata Torr. & A. Gray Native TEGL

  littleleaf horsebrush · Asteraceae
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  Thelypodium laciniatum (Hook.) Endl. ex Walp. Native THLA

  cutleaf thelypody · Brassicaceae
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  Thelypodium milleflorum A. Nelson Native THMI5

  manyflower thelypody · Brassicaceae
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  Thinopyrum intermedium (Host) Barkworth & D.R. Dewey Introduced THIN6

  intermediate wheatgrass · Poaceae
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  Thlaspi arvense L. Introduced THAR5

  field pennycress · Brassicaceae
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  Thuja plicata Donn ex D. Don Native THPL

  western redcedar · Cupressaceae
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  Thysanocarpus curvipes Hook. Native THCU

  sand fringepod · Brassicaceae
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  Tiarella trifoliata L. Native TITR

  threeleaf foamflower · Saxifragaceae
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  Tiarella trifoliata L. var. trifoliata Native TITRT

  threeleaf foamflower · Saxifragaceae
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  Tiarella trifoliata L. var. unifoliata (Hook.) Kurtz Native TITRU

  oneleaf foamflower · Saxifragaceae
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  Tolmiea menziesii (Pursh) Torr. & A. Gray Native TOME

  youth on age · Saxifragaceae
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  Tonella tenella (Benth.) A. Heller Native TOTE

  lesser baby innocence · Scrophulariaceae
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  Torreyochloa pallida (Torr.) Church Native TOPA6

  pale false mannagrass · Poaceae
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  Torreyochloa pallida (Torr.) Church var. pauciflora (J. Presl) J.I. Davis Native TOPAP3

  pale false mannagrass · Poaceae
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  Toxicodendron diversilobum (Torr. & A. Gray) Greene Native TODI

  Pacific poison oak · Anacardiaceae
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  Toxicodendron rydbergii (Small ex Rydb.) Greene Native TORY

  western poison ivy · Anacardiaceae
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  Tragopogon dubius Scop. Introduced TRDU

  yellow salsify · Asteraceae
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  Tragopogon porrifolius L. Introduced TRPO

  salsify · Asteraceae
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  Tragopogon pratensis L. Introduced TRPR

  Jack-go-to-bed-at-noon · Asteraceae
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  Triantha occidentalis (S. Watson) Gates Native TROC7

  western false asphodel · Liliaceae
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  Triantha occidentalis (S. Watson) Gates ssp. brevistyla (C.L. Hitchc.) Packer Native TROCB

  sticky tofieldia · Liliaceae
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  Tribulus terrestris L. Introduced TRTE

  puncturevine · Zygophyllaceae
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  Trichostema oblongum Benth. Native TROB

  oblong bluecurls · Lamiaceae
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  Trientalis borealis Raf. Native TRBO2

  starflower · Primulaceae
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  Trientalis borealis Raf. ssp. latifolia (Hook.) Hultén Native TRBOL

  broadleaf starflower · Primulaceae
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  Trientalis europaea L. Native TREU

  arctic starflower · Primulaceae
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  Trientalis europaea L. ssp. arctica (Fisch. ex Hook.) Hultén Native TREUA

  arctic starflower · Primulaceae
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  Trifolium arvense L. Introduced TRAR4

  rabbitfoot clover · Fabaceae
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  Trifolium campestre Schreb. Introduced TRCA5

  field clover · Fabaceae
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  Trifolium ciliolatum Benth. Native TRCI

  foothill clover · Fabaceae
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  Trifolium cyathiferum Lindl. Native TRCY

  cup clover · Fabaceae
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  Trifolium dubium Sibth. Introduced TRDU2

  suckling clover · Fabaceae
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  Trifolium eriocephalum Nutt. Native TRER2

  woollyhead clover · Fabaceae
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  Trifolium eriocephalum Nutt. ssp. cascadense J.M. Gillett Native TRERC2

  Cascade clover · Fabaceae
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  Trifolium eriocephalum Nutt. ssp. cusickii (Piper) J.M. Gillett Native TRERC3

  Cusick's clover · Fabaceae
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  Trifolium eriocephalum Nutt. ssp. eriocephalum Native TRERE

  woollyhead clover · Fabaceae
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  Trifolium longipes Nutt. Native TRLO

  longstalk clover · Fabaceae
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  Trifolium macrocephalum (Pursh) Poir. Native TRMA3

  largehead clover · Fabaceae