Walla Walla County

Showing 1,101–1,150 of 1,225.

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  Symphyotrichum eatonii (A. Gray) G.L. Nesom Native SYEA2

  Eaton's aster · Asteraceae
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  Symphyotrichum ericoides (L.) G.L. Nesom Native SYER

  white heath aster · Asteraceae
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  Symphyotrichum ericoides (L.) G.L. Nesom var. pansum (S.F. Blake) G.L. Nesom Native SYERP2

  manyflowered aster · Asteraceae
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  Symphyotrichum foliaceum (Lindl. ex DC.) G.L. Nesom Native SYFO2

  alpine leafybract aster · Asteraceae
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  Symphyotrichum foliaceum (Lindl. ex DC.) G.L. Nesom var. parryi (D.C. Eaton) G.L. Nesom Native SYFOP

  Parry's aster · Asteraceae
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  Symphyotrichum jessicae (Piper) G.L. Nesom Native SYJE

  Jessica's aster · Asteraceae
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  Symphyotrichum laeve (L.) Á. Löve & D. Löve Native SYLA3

  smooth blue aster · Asteraceae
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  Symphyotrichum laeve (L.) Á. Löve & D. Löve var. geyeri (A. Gray) G.L. Nesom Native SYLAG

  Geyer'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. intermedium (A. Gray) G.L. Nesom Native SYSPI

  larger 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. subspicatum Native SYSUS

  Douglas aster · Asteraceae
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  Symphyotrichum ×columbianum (Piper) G.L. Nesom [campestre × ericoides] Native SYCO2

  aster · Asteraceae
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  Synthyris missurica (Raf.) Pennell Native SYMI

  tailed kittentails · Scrophulariaceae
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  Synthyris missurica (Raf.) Pennell ssp. missurica Native SYMIM2

  tailed kittentails · Scrophulariaceae
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  Taeniatherum caput-medusae (L.) Nevski Introduced TACA8

  medusahead · Poaceae
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  Tamarix parviflora DC. Introduced TAPA4

  smallflower tamarisk · Tamaricaceae
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  Tanacetum parthenium (L.) Sch. Bip. Introduced TAPA6

  feverfew · Asteraceae
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  Tanacetum vulgare L. Introduced TAVU

  common tansy · Asteraceae
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  Taraxacum laevigatum (Willd.) DC. Introduced TALA2

  rock dandelion · Asteraceae
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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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  Thalictrum occidentale A. Gray Native THOC

  western meadow-rue · Ranunculaceae
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  Thalictrum occidentale A. Gray var. occidentale Native THOCO2

  western meadow-rue · Ranunculaceae
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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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  Thermopsis gracilis Howell Native THGR6

  slender goldenbanner · Fabaceae
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  Thermopsis gracilis Howell var. ovata (B.L. Rob. ex Piper) M. Mendenhall Native THGRO

  slender goldenbanner · Fabaceae
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  Thermopsis montana Nutt. Native THMO6

  mountain goldenbanner · Fabaceae
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  Thinopyrum intermedium (Host) Barkworth & D.R. Dewey Introduced THIN6

  intermediate wheatgrass · Poaceae
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  Thinopyrum ponticum (Podp.) Z.-W. Liu & R.-C. Wang Introduced THPO7

  tall wheatgrass · Poaceae
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  Thlaspi arvense L. Introduced THAR5

  field pennycress · Brassicaceae
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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. unifoliata (Hook.) Kurtz Native TITRU

  oneleaf foamflower · Saxifragaceae
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  Tonella floribunda A. Gray Native TOFL

  manyflower tonella · Scrophulariaceae
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  Townsendia florifer (Hook.) A. Gray Native TOFL5

  showy Townsend daisy · Asteraceae
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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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  Trautvetteria caroliniensis (Walter) Vail Native TRCA

  Carolina bugbane · Ranunculaceae
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  Trautvetteria caroliniensis (Walter) Vail var. occidentalis (A. Gray) C.L. Hitchc. Native TRCAO

  western bugbane · Ranunculaceae
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  Tribulus terrestris L. Introduced TRTE

  puncturevine · Zygophyllaceae
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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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  Trifolium cyathiferum Lindl. Native TRCY

  cup clover · Fabaceae
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  Trifolium eriocephalum Nutt. Native TRER2

  woollyhead clover · Fabaceae
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  Trifolium eriocephalum Nutt. ssp. arcuatum (Piper) J.M. Gillett Native TRERA2

  woollyhead clover · Fabaceae