Sherman County

Showing 1–50 of 525.

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  Abronia mellifera Douglas ex Hook. Native ABME

  white sand verbena · Nyctaginaceae
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  Acer negundo L. Native ACNE2

  boxelder · Aceraceae
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  Acer negundo L. var. negundo Native ACNEN

  boxelder · Aceraceae
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  Achillea millefolium L. Both ACMI2

  common yarrow · Asteraceae
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  Achnatherum hendersonii (Vasey) Barkworth Native ACHE10

  Henderson's needlegrass · Poaceae
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  Achnatherum hymenoides (Roem. & Schult.) Barkworth Native ACHY

  Indian ricegrass · Poaceae
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  Achnatherum nelsonii (Scribn.) Barkworth Native ACNE9

  Columbia needlegrass · Poaceae
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  Achnatherum nelsonii (Scribn.) Barkworth ssp. dorei (Barkworth & Maze) Barkworth Native ACNED

  Dore's needlegrass · Poaceae
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  Achnatherum thurberianum (Piper) Barkworth Native ACTH7

  Thurber's needlegrass · Poaceae
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  Acroptilon repens (L.) DC. Introduced ACRE3

  hardheads · Asteraceae
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  Agoseris grandiflora (Nutt.) Greene Native AGGR

  bigflower agoseris · 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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  Agrostemma githago L. Introduced AGGI

  common corncockle · Caryophyllaceae
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  Agrostis gigantea Roth Introduced AGGI2

  redtop · Poaceae
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  Agrostis stolonifera L. Introduced AGST2

  creeping bentgrass · Poaceae
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  Ailanthus altissima (Mill.) Swingle Introduced AIAL

  tree of heaven · Simaroubaceae
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  Allium acuminatum Hook. Native ALAC4

  tapertip onion · Liliaceae
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  Allium parvum Kellogg Native ALPA3

  small onion · Liliaceae
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  Allium robinsonii L.F. Hend. Native ALRO

  Robinson's onion · Liliaceae
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  Alnus rhombifolia Nutt. Native ALRH2

  white alder · Betulaceae
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  Alopecurus carolinianus Walter Native ALCA4

  Carolina foxtail · Poaceae
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  Amaranthus albus L. Introduced AMAL

  prostrate pigweed · Amaranthaceae
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  Amaranthus blitoides S. Watson Introduced AMBL

  mat amaranth · Amaranthaceae
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  Ambrosia acanthicarpa Hook. Native AMAC2

  flatspine bur ragweed · Asteraceae
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  Amelanchier alnifolia (Nutt.) Nutt. ex M. Roem. Native AMAL2

  Saskatoon serviceberry · Rosaceae
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  Amelanchier alnifolia (Nutt.) Nutt. ex M. Roem. var. cusickii (Fernald) C.L. Hitchc. Native AMALC

  Cusick's serviceberry · Rosaceae
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  Ammannia robusta Heer & Regel Native AMRO3

  grand redstem · Lythraceae
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  Amorpha fruticosa L. Native AMFR

  false indigo bush · Fabaceae
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  Amsinckia lycopsoides Lehm. Native AMLY

  tarweed fiddleneck · Boraginaceae
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  Amsinckia tessellata A. Gray Native AMTE3

  bristly fiddleneck · Boraginaceae
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  Amsinckia tessellata A. Gray var. tessellata Native AMTET

  bristly fiddleneck · Boraginaceae
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  Antennaria dimorpha (Nutt.) Torr. & A. Gray Native ANDI2

  low pussytoes · Asteraceae
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  Antennaria luzuloides Torr. & A. Gray Native ANLU2

  rush pussytoes · Asteraceae
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  Antennaria luzuloides Torr. & A. Gray ssp. luzuloides Native ANLUL

  rush pussytoes · Asteraceae
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  Anthriscus caucalis M. Bieb. Introduced ANCA14

  bur chervil · Apiaceae
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  Apera interrupta (L.) P. Beauv. Introduced APIN

  dense silkybent · Poaceae
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  Apocynum androsaemifolium L. Native APAN2

  spreading dogbane · Apocynaceae
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  Apocynum cannabinum L. Native APCA

  Indianhemp · Apocynaceae
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  Aquilegia formosa Fisch. ex DC. Native AQFO

  western columbine · Ranunculaceae
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  Arabis microphylla Nutt. Native ARMI

  littleleaf rockcress · Brassicaceae
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  Arabis microphylla Nutt. var. microphylla Native ARMIM2

  littleleaf rockcress · Brassicaceae
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  Arenaria franklinii Douglas ex Hook. Native ARFR

  Franklin's sandwort · Caryophyllaceae
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  Arenaria franklinii Douglas ex Hook. var. franklinii Native ARFRF2

  Franklin's sandwort · Caryophyllaceae
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  Argentina anserina (L.) Rydb. Native ARAN7

  silverweed cinquefoil · Rosaceae
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  Artemisia campestris L. Native ARCA12

  field sagewort · Asteraceae
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  Artemisia campestris L. ssp. borealis (Pall.) H.M. Hall & Clem. Native ARCAB2

  field sagewort · Asteraceae
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  Artemisia campestris L. ssp. borealis (Pall.) H.M. Hall & Clem. var. scouleriana (Hook.) Cronquist Native ARCAS5

  field sagewort · Asteraceae
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  Artemisia campestris L. ssp. borealis (Pall.) H.M. Hall & Clem. var. wormskioldii (Besser ex Hook.) Cronquist Native ARCAW

  field sagewort · Asteraceae
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  Artemisia dracunculus L. Native ARDR4

  tarragon · Asteraceae