Montgomery County

Showing 1–50 of 748.

• 
  Abutilon theophrasti Medik. Introduced ABTH

  velvetleaf · Malvaceae
• 
  Acalypha virginica L. Native ACVI

  Virginia threeseed mercury · Euphorbiaceae
• 
  Acer negundo L. Native ACNE2

  boxelder · Aceraceae
• 
  Acer nigrum Michx. f. Native ACNI5

  black maple · Aceraceae
• 
  Acer rubrum L. Native ACRU

  red maple · Aceraceae
• 
  Acer rubrum L. var. rubrum Native ACRUR

  red maple · Aceraceae
• 
  Acer saccharinum L. Native ACSA2

  silver maple · Aceraceae
• 
  Acer saccharum Marshall Native ACSA3

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

  sugar maple · Aceraceae
• 
  Achillea millefolium L. Both ACMI2

  common yarrow · Asteraceae
• 
  Actaea pachypoda Elliott Native ACPA

  white baneberry · Ranunculaceae
• 
  Aesculus glabra Willd. Native AEGL

  Ohio buckeye · Hippocastanaceae
• 
  Aesculus glabra Willd. var. glabra Native AEGLG

  Ohio buckeye · Hippocastanaceae
• 
  Agalinis purpurea (L.) Pennell Native AGPU5

  purple false foxglove · Scrophulariaceae
• 
  Agalinis tenuifolia (Vahl) Raf. Native AGTE3

  slenderleaf false foxglove · Scrophulariaceae
• 
  Agalinis tenuifolia (Vahl) Raf. var. macrophylla (Benth.) S.F. Blake Native AGTEM

  slenderleaf false foxglove · Scrophulariaceae
• 
  Agastache nepetoides (L.) Kuntze Native AGNE2

  yellow giant hyssop · Lamiaceae
• 
  Ageratina altissima (L.) R.M. King & H. Rob. Native AGAL5

  white snakeroot · Asteraceae
• 
  Ageratina altissima (L.) R.M. King & H. Rob. var. altissima Native AGALA

  white snakeroot · Asteraceae
• 
  Agrimonia parviflora Aiton Native AGPA6

  harvestlice · Rosaceae
• 
  Agrimonia rostellata Wallr. Native AGRO3

  beaked agrimony · Rosaceae
• 
  Agrostemma githago L. Introduced AGGI

  common corncockle · Caryophyllaceae
• 
  Ailanthus altissima (Mill.) Swingle Introduced AIAL

  tree of heaven · Simaroubaceae
• 
  Alisma subcordatum Raf. Native ALSU

  American water plantain · Alismataceae
• 
  Allium canadense L. Native ALCA3

  meadow garlic · Liliaceae
• 
  Allium canadense L. var. canadense Native ALCAC

  meadow garlic · Liliaceae
• 
  Allium tricoccum Aiton Native ALTR3

  ramp · Liliaceae
• 
  Alyssum alyssoides (L.) L. Introduced ALAL3

  pale madwort · Brassicaceae
• 
  Amaranthus blitoides S. Watson Introduced AMBL

  mat amaranth · Amaranthaceae
• 
  Amaranthus hybridus L. Native AMHY

  slim amaranth · Amaranthaceae
• 
  Amaranthus spinosus L. Native AMSP

  spiny amaranth · Amaranthaceae
• 
  Amaranthus tuberculatus (Moq.) Sauer Native AMTU

  roughfruit amaranth · Amaranthaceae
• 
  Ambrosia artemisiifolia L. Both AMAR2

  annual ragweed · Asteraceae
• 
  Ambrosia artemisiifolia L. var. elatior (L.) Descourtils Introduced AMARE

  annual ragweed · Asteraceae
• 
  Ambrosia trifida L. Native AMTR

  great ragweed · Asteraceae
• 
  Ambrosia trifida L. var. trifida Native AMTRT2

  great ragweed · Asteraceae
• 
  Amphicarpaea bracteata (L.) Fernald Native AMBR2

  American hogpeanut · Fabaceae
• 
  Anagallis arvensis L. Introduced ANAR

  scarlet pimpernel · Primulaceae
• 
  Andropogon virginicus L. Native ANVI2

  broomsedge bluestem · Poaceae
• 
  Andropogon virginicus L. var. virginicus Native ANVIV

  broomsedge bluestem · Poaceae
• 
  Anemone canadensis L. Native ANCA8

  Canadian anemone · Ranunculaceae
• 
  Anemone quinquefolia L. Native ANQU

  wood anemone · Ranunculaceae
• 
  Anemone virginiana L. Native ANVI3

  tall thimbleweed · Ranunculaceae
• 
  Anemone virginiana L. var. virginiana Native ANVIV2

  tall thimbleweed · Ranunculaceae
• 
  Anthemis cotula L. Introduced ANCO2

  stinking chamomile · Asteraceae
• 
  Aplectrum hyemale (Muhl. ex Willd.) Torr. Native APHY

  Adam and Eve · Orchidaceae
• 
  Apocynum cannabinum L. Native APCA

  Indianhemp · Apocynaceae
• 
  Aquilegia canadensis L. Native AQCA

  red columbine · Ranunculaceae
• 
  Arabidopsis thaliana (L.) Heynh. Introduced ARTH

  mouseear cress · Brassicaceae
• 
  Arabis canadensis L. Native ARCA

  sicklepod · Brassicaceae