Pike County

Showing 1–50 of 406.

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  Acalypha rhomboidea Raf. Native ACRH

  common threeseed mercury · Euphorbiaceae
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  Acalypha virginica L. Native ACVI

  Virginia threeseed mercury · Euphorbiaceae
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  Acer saccharum Marshall Native ACSA3

  sugar maple · Aceraceae
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  Achillea millefolium L. Both ACMI2

  common yarrow · Asteraceae
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  Achillea millefolium L. var. occidentalis DC. Native ACMIO

  western yarrow · Asteraceae
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  Adiantum pedatum L. Native ADPE

  northern maidenhair · Pteridaceae
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  Agastache nepetoides (L.) Kuntze Native AGNE2

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

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

  white snakeroot · Asteraceae
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  Agrostis elliottiana Schult. Native AGEL4

  Elliott's bentgrass · Poaceae
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  Agrostis gigantea Roth Introduced AGGI2

  redtop · Poaceae
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  Agrostis hyemalis (Walter) Britton, Sterns & Poggenb. Native AGHY

  winter bentgrass · Poaceae
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  Allium canadense L. Native ALCA3

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

  meadow garlic · 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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  Amaranthus hybridus L. Native AMHY

  slim amaranth · Amaranthaceae
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  Amaranthus spinosus L. Native AMSP

  spiny amaranth · Amaranthaceae
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  Ambrosia trifida L. Native AMTR

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

  great ragweed · Asteraceae
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  Ampelopsis cordata Michx. Native AMCO2

  heartleaf peppervine · Vitaceae
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  Amphicarpaea bracteata (L.) Fernald Native AMBR2

  American hogpeanut · Fabaceae
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  Andropogon gerardii Vitman Native ANGE

  big bluestem · Poaceae
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  Andropogon gyrans Ashe Native ANGY2

  Elliott's bluestem · Poaceae
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  Andropogon gyrans Ashe var. gyrans Native ANGYG

  Elliott's bluestem · Poaceae
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  Andropogon virginicus L. Native ANVI2

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

  broomsedge bluestem · Poaceae
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  Angelica venenosa (Greenway) Fernald Native ANVE

  hairy angelica · Apiaceae
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  Anthemis cotula L. Introduced ANCO2

  stinking chamomile · Asteraceae
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  Apios americana Medik. Native APAM

  groundnut · Fabaceae
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  Aplectrum hyemale (Muhl. ex Willd.) Torr. Native APHY

  Adam and Eve · Orchidaceae
• 
  Arabidopsis thaliana (L.) Heynh. Introduced ARTH

  mouseear cress · Brassicaceae
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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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  Arctium minus Bernh. Introduced ARMI2

  lesser burdock · Asteraceae
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  Aristida longespica Poir. Native ARLO16

  slimspike threeawn · Poaceae
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  Aristida oligantha Michx. Native AROL

  prairie threeawn · Poaceae
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  Arnoglossum atriplicifolium (L.) H. Rob. Native ARAT

  pale Indian plantain · Asteraceae
• 
  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 perennis Walter Native ASPE

  aquatic 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
• 
  Asparagus officinalis L. Introduced ASOF

  garden asparagus · Liliaceae
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  Baptisia alba (L.) Vent. Native BAAL

  white wild indigo · Fabaceae
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  Baptisia alba (L.) Vent. var. macrophylla (Larisey) Isely Native BAALM

  largeleaf wild indigo · Fabaceae
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  Barbarea vulgaris W.T. Aiton Introduced BAVU

  garden yellowrocket · Brassicaceae
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  Betula nigra L. Native BENI

  river birch · Betulaceae
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  Bidens bipinnata L. Native BIBI7

  Spanish needles · Asteraceae