Montgomery County

Showing 51–100 of 748.

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  Arabis laevigata (Muhl. ex Willd.) Poir. Native ARLA

  smooth rockcress · Brassicaceae
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  Arabis laevigata (Muhl. ex Willd.) Poir. var. laevigata Native ARLAL

  smooth rockcress · Brassicaceae
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  Arabis shortii (Fernald) Gleason Native ARSH2

  Short's rockcress · Brassicaceae
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  Aralia racemosa L. Native ARRA

  American spikenard · Araliaceae
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  Aralia racemosa L. ssp. racemosa Native ARRAR

  American spikenard · Araliaceae
• 
  Arenaria serpyllifolia L. Introduced ARSE2

  thymeleaf sandwort · Caryophyllaceae
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  Arisaema dracontium (L.) Schott Native ARDR3

  green dragon · Araceae
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  Arisaema triphyllum (L.) Schott Native ARTR

  Jack in the pulpit · Araceae
• 
  Arisaema triphyllum (L.) Schott ssp. triphyllum Native ARTRT3

  Jack in the pulpit · Araceae
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  Asarum canadense L. Native ASCA

  Canadian wildginger · Aristolochiaceae
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  Asclepias incarnata L. Native ASIN

  swamp milkweed · Asclepiadaceae
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  Asclepias incarnata L. ssp. incarnata Native ASINI

  swamp milkweed · Asclepiadaceae
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  Asclepias quadrifolia Jacq. Native ASQU

  fourleaf milkweed · Asclepiadaceae
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  Asclepias syriaca L. Native ASSY

  common milkweed · Asclepiadaceae
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  Asclepias tuberosa L. Native ASTU

  butterfly milkweed · Asclepiadaceae
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  Asimina triloba (L.) Dunal Native ASTR

  pawpaw · Annonaceae
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  Asplenium platyneuron (L.) Britton, Sterns & Poggenb. Native ASPL

  ebony spleenwort · Aspleniaceae
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  Asplenium platyneuron (L.) Britton, Sterns & Poggenb. var. platyneuron Native ASPLP

  ebony spleenwort · Aspleniaceae
• 
  Asplenium rhizophyllum L. Native ASRH2

  walking fern · Aspleniaceae
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  Athyrium filix-femina (L.) Roth Native ATFI

  common ladyfern · Dryopteridaceae
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  Athyrium filix-femina (L.) Roth ssp. angustum (Willd.) R.T. Clausen Native ATFIA

  subarctic ladyfern · Dryopteridaceae
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  Aureolaria flava (L.) Farw. Native AUFL

  smooth yellow false foxglove · Scrophulariaceae
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  Aureolaria flava (L.) Farw. var. macrantha Pennell Native AUFLM

  smooth yellow false foxglove · Scrophulariaceae
• 
  Barbarea vulgaris W.T. Aiton Introduced BAVU

  garden yellowrocket · Brassicaceae
• 
  Berteroa incana (L.) DC. Introduced BEIN2

  hoary alyssum · Brassicaceae
• 
  Besseya bullii (Eaton) Rydb. Native BEBU

  Bull's coraldrops · Scrophulariaceae
• 
  Bidens bipinnata L. Native BIBI7

  Spanish needles · Asteraceae
• 
  Bidens cernua L. Native BICE

  nodding beggartick · Asteraceae
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  Bidens coronata (L.) Britton Native BICO

  crowned beggarticks · Asteraceae
• 
  Bidens vulgata Greene Native BIVU

  big devils beggartick · Asteraceae
• 
  Blephilia ciliata (L.) Benth. Native BLCI

  downy pagoda-plant · Lamiaceae
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  Blephilia hirsuta (Pursh) Benth. Native BLHI

  hairy pagoda-plant · Lamiaceae
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  Blephilia hirsuta (Pursh) Benth. var. hirsuta Native BLHIH

  hairy pagoda-plant · Lamiaceae
• 
  Botrychium dissectum Spreng. Native BODI2

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

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

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

  sideoats grama · Poaceae
• 
  Brassica nigra (L.) W.D.J. Koch Introduced BRNI

  black mustard · Brassicaceae
• 
  Bromus kalmii A. Gray Native BRKA2

  arctic brome · Poaceae
• 
  Bromus latiglumis (Shear) Hitchc. Native BRLA4

  earlyleaf brome · Poaceae
• 
  Buglossoides arvensis (L.) I.M. Johnst. Introduced BUAR3

  corn gromwell · Boraginaceae
• 
  Caltha palustris L. Native CAPA5

  yellow marsh marigold · Ranunculaceae
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  Caltha palustris L. var. palustris Native CAPAP6

  yellow marsh marigold · Ranunculaceae
• 
  Calystegia sepium (L.) R. Br. Both CASE13

  hedge false bindweed · Convolvulaceae
• 
  Camelina microcarpa Andrz. ex DC. Introduced CAMI2

  littlepod false flax · Brassicaceae
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  Campanula aparinoides Pursh Native CAAP2

  marsh bellflower · Campanulaceae
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  Campanulastrum americanum (L.) Small Native CAAM18

  American bellflower · Campanulaceae
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  Capsella bursa-pastoris (L.) Medik. Introduced CABU2

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

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

  cutleaf toothwort · Brassicaceae