Washington County

Showing 51–100 of 533.

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  Astragalus canadensis L. var. canadensis Native ASCAC6

  Canadian milkvetch · Fabaceae
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  Bassia scoparia (L.) A.J. Scott Introduced BASC5

  burningbush · Chenopodiaceae
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  Bidens aristosa (Michx.) Britton Native BIAR

  bearded beggarticks · Asteraceae
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  Bidens cernua L. Native BICE

  nodding beggartick · Asteraceae
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  Bidens connata Muhl. ex Willd. Native BICO5

  purplestem beggarticks · Asteraceae
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  Bidens frondosa L. Native BIFR

  devil's beggartick · Asteraceae
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  Bidens tripartita L. Native BITR

  threelobe beggarticks · Asteraceae
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  Bidens vulgata Greene Native BIVU

  big devils beggartick · Asteraceae
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  Boehmeria cylindrica (L.) Sw. Native BOCY

  smallspike false nettle · Urticaceae
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  Bolboschoenus fluviatilis (Torr.) Soják Native BOFL3

  river bulrush · Cyperaceae
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  Boltonia asteroides (L.) L'Hér. Native BOAS

  white doll's daisy · Asteraceae
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  Boltonia asteroides (L.) L'Hér. var. recognita (Fernald & Grisc.) Cronquist Native BOASR

  white doll's daisy · Asteraceae
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  Botrychium dissectum Spreng. Native BODI2

  cutleaf grapefern · Ophioglossaceae
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  Botrychium virginianum (L.) Sw. Native BOVI

  rattlesnake fern · Ophioglossaceae
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  Bouteloua curtipendula (Michx.) Torr. Native BOCU

  sideoats grama · Poaceae
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  Bouteloua curtipendula (Michx.) Torr. var. curtipendula Native BOCUC2

  sideoats grama · Poaceae
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  Brickellia eupatorioides (L.) Shinners Native BREU

  false boneset · Asteraceae
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  Brickellia eupatorioides (L.) Shinners var. corymbulosa (Torr. & A. Gray) Shinners Native BREUC

  false boneset · Asteraceae
• 
  Bromus arvensis L. Introduced BRAR5

  field brome · Poaceae
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  Bromus ciliatus L. Native BRCI2

  fringed brome · Poaceae
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  Bromus ciliatus L. var. ciliatus Native BRCIC3

  fringed brome · Poaceae
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  Bromus inermis Leyss. Both BRIN2

  smooth brome · Poaceae
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  Bromus inermis Leyss. ssp. inermis Introduced BRINI

  smooth brome · Poaceae
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  Bromus inermis Leyss. ssp. inermis var. inermis Introduced BRINI2

  smooth brome · Poaceae
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  Bromus pubescens Muhl. ex Willd. Native BRPU6

  hairy woodland brome · Poaceae
• 
  Bromus tectorum L. Introduced BRTE

  cheatgrass · Poaceae
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  Calystegia sepium (L.) R. Br. Both CASE13

  hedge false bindweed · Convolvulaceae
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  Calystegia sepium (L.) R. Br. ssp. angulata Brummitt Native CASEA3

  hedge false bindweed · Convolvulaceae
• 
  Campanulastrum americanum (L.) Small Native CAAM18

  American bellflower · Campanulaceae
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  Cannabis sativa L. Introduced CASA3

  marijuana · Cannabaceae
• 
  Cannabis sativa L. ssp. sativa Introduced CASAS3

  marijuana · Cannabaceae
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  Cannabis sativa L. ssp. sativa var. sativa Introduced CASAS9

  marijuana · Cannabaceae
• 
  Capsella bursa-pastoris (L.) Medik. Introduced CABU2

  shepherd's purse · Brassicaceae
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  Cardamine bulbosa (Schreb. ex Muhl.) Britton, Sterns & Poggenb. Native CABU3

  bulbous bittercress · Brassicaceae
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  Cardamine concatenata (Michx.) Sw. Native CACO26

  cutleaf toothwort · Brassicaceae
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  Cardamine pensylvanica Muhl. ex Willd. Native CAPE3

  Pennsylvania bittercress · Brassicaceae
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  Carduus nutans L. Introduced CANU4

  nodding plumeless thistle · Asteraceae
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  Carex aggregata Mack. Native CAAG2

  glomerate sedge · Cyperaceae
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  Carex albicans Willd. ex Spreng. Native CAAL25

  whitetinge sedge · Cyperaceae
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  Carex albicans Willd. ex Spreng. var. albicans Native CAALA

  whitetinge sedge · Cyperaceae
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  Carex blanda Dewey Native CABL

  eastern woodland sedge · Cyperaceae
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  Carex brevior (Dewey) Mack. Native CABR10

  shortbeak sedge · Cyperaceae
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  Carex emoryi Dewey Native CAEM2

  Emory's sedge · Cyperaceae
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  Carex grisea Wahlenb. Native CAGR24

  inflated narrow-leaf sedge · Cyperaceae
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  Carex laeviconica Dewey Native CALA12

  smoothcone sedge · Cyperaceae
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  Carex molesta Mack. ex Bright Native CAMO11

  troublesome sedge · Cyperaceae
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  Carex rosea Schkuhr ex Willd. Native CARO22

  rosy sedge · Cyperaceae
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  Carex sprengelii Dewey ex Spreng. Native CASP7

  Sprengel's sedge · Cyperaceae
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  Carya cordiformis (Wangenh.) K. Koch Native CACO15

  bitternut hickory · Juglandaceae
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  Carya ovata (Mill.) K. Koch Native CAOV2

  shagbark hickory · Juglandaceae