Washington County

Showing 1–50 of 998.

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  Abies balsamea (L.) Mill. Native ABBA

  balsam fir · Pinaceae
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  Acer pensylvanicum L. Native ACPE

  striped maple · Aceraceae
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  Acer rubrum L. Native ACRU

  red maple · Aceraceae
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  Acer saccharum Marshall Native ACSA3

  sugar maple · Aceraceae
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  Acer saccharum Marshall var. saccharum Native ACSAS

  sugar maple · Aceraceae
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  Acer spicatum Lam. Native ACSP2

  mountain maple · Aceraceae
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  Achillea millefolium L. Both ACMI2

  common yarrow · Asteraceae
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  Achillea ptarmica L. Introduced ACPT

  sneezeweed · Asteraceae
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  Aconitum napellus L. Introduced ACNA

  Venus' chariot · Ranunculaceae
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  Acorus calamus L. Introduced ACCA4

  calamus · Acoraceae
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  Actaea pachypoda Elliott Native ACPA

  white baneberry · Ranunculaceae
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  Actaea rubra (Aiton) Willd. Native ACRU2

  red baneberry · Ranunculaceae
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  Actaea rubra (Aiton) Willd. ssp. rubra Native ACRUR2

  red baneberry · Ranunculaceae
• ⚘
  Agalinis paupercula (A. Gray) Britton Native AGPA12

  smallflower false foxglove · Scrophulariaceae
• ⚘
  Agalinis paupercula (A. Gray) Britton var. borealis Pennell Native AGPAB

  smallflower false foxglove · Scrophulariaceae
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  Agrimonia striata Michx. Native AGST

  roadside agrimony · Rosaceae
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  Agrostis capillaris L. Introduced AGCA5

  colonial bentgrass · Poaceae
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  Agrostis gigantea Roth Introduced AGGI2

  redtop · Poaceae
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  Agrostis perennans (Walter) Tuck. Native AGPE

  upland bentgrass · Poaceae
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  Agrostis scabra Willd. Native AGSC5

  rough bentgrass · Poaceae
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  Alisma subcordatum Raf. Native ALSU

  American water plantain · Alismataceae
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  Alisma triviale Pursh Native ALTR7

  northern water plantain · Alismataceae
• 
  Allium schoenoprasum L. Both ALSC

  wild chives · Liliaceae
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  Alnus incana (L.) Moench Native ALIN2

  gray alder · Betulaceae
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  Alnus incana (L.) Moench ssp. rugosa (Du Roi) R.T. Clausen Native ALINR

  speckled alder · Betulaceae
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  Alnus viridis (Chaix) DC. Native ALVI5

  green alder · Betulaceae
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  Alnus viridis (Chaix) DC. ssp. crispa (Aiton) Turrill Native ALVIC

  mountain alder · Betulaceae
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  Alopecurus aequalis Sobol. Native ALAE

  shortawn foxtail · Poaceae
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  Alopecurus aequalis Sobol. var. aequalis Native ALAEA

  shortawn foxtail · Poaceae
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  Alopecurus geniculatus L. Introduced ALGE2

  water foxtail · Poaceae
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  Alopecurus geniculatus L. var. geniculatus Introduced ALGEG4

  water foxtail · Poaceae
• 
  Alopecurus pratensis L. Introduced ALPR3

  meadow foxtail · Poaceae
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  Amaranthus retroflexus L. Native AMRE

  redroot amaranth · Amaranthaceae
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  Ambrosia artemisiifolia L. Both AMAR2

  annual ragweed · Asteraceae
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  Amelanchier arborea (Michx. f.) Fernald Native AMAR3

  common serviceberry · Rosaceae
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  Amelanchier arborea (Michx. f.) Fernald var. arborea Native AMARA4

  common serviceberry · Rosaceae
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  Amelanchier bartramiana (Tausch) M. Roem. Native AMBA

  oblongfruit serviceberry · Rosaceae
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  Amelanchier canadensis (L.) Medik. Native AMCA4

  Canadian serviceberry · Rosaceae
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  Amelanchier sanguinea (Pursh) DC. Native AMSA

  roundleaf serviceberry · Rosaceae
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  Amelanchier stolonifera Wiegand Native AMST80

  running serviceberry · Rosaceae
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  Ammophila breviligulata Fernald Native AMBR

  American beachgrass · Poaceae
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  Amphicarpaea bracteata (L.) Fernald Native AMBR2

  American hogpeanut · Fabaceae
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  Anaphalis margaritacea (L.) Benth. Native ANMA

  western pearly everlasting · Asteraceae
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  Andromeda polifolia L. Native ANPO

  bog rosemary · Ericaceae
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  Andromeda polifolia L. var. glaucophylla (Link) DC. Native ANPOG

  bog rosemary · Ericaceae
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  Angelica lucida L. Native ANLU

  seacoast angelica · Apiaceae
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  Antennaria howellii Greene Native ANHO

  Howell's pussytoes · Asteraceae
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  Antennaria howellii Greene ssp. canadensis (Greene) Bayer Native ANHOC

  Canadian pussytoes · Asteraceae
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  Antennaria howellii Greene ssp. neodioica (Greene) Bayer Native ANHON

  Howell's pussytoes · Asteraceae
• ⚘
  Antennaria neglecta Greene Native ANNE

  field pussytoes · Asteraceae