Index / States / Pennsylvania / Allegheny
§1County listing — Pennsylvania
Allegheny County
Pennsylvania
- FIPS
- 42003
- Taxa recorded
- 1,943
- State
- Pennsylvania
Filter
Showing 151–200 of 1,943.
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Aristida dichotoma Michx. var. dichotoma Native ARDIDchurchmouse threeawn · Poaceae -
Aristida oligantha Michx. Native AROLprairie threeawn · Poaceae -
Aristolochia macrophylla Lam. Native ARMA7pipevine · Aristolochiaceae -
Aristolochia serpentaria L. Native ARSE3Virginia snakeroot · Aristolochiaceae -
Armoracia rusticana G. Gaertn., B. Mey. & Scherb. Introduced ARRU4horseradish · Brassicaceae -
Arnoglossum atriplicifolium (L.) H. Rob. Native ARATpale Indian plantain · Asteraceae -
Arnoglossum reniforme (Hook.) H. Rob. Native ARRE6great Indian plantain · Asteraceae -
Aronia arbutifolia (L.) Pers. Native ARAR7red chokeberry · Rosaceae -
Aronia melanocarpa (Michx.) Elliott Native ARME6black chokeberry · Rosaceae - Aronia ×prunifolia (Marshall) Rehder, (pro sp.) [arbutifolia × melanocarpa] Native ARPR2purple chokeberry · Rosaceae
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Arrhenatherum elatius (L.) P. Beauv. ex J. Presl & C. Presl Introduced AREL3tall oatgrass · Poaceae - Arrhenatherum elatius (L.) P. Beauv. ex J. Presl & C. Presl var. elatius Introduced ARELEtall oatgrass · Poaceae
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Artemisia absinthium L. Introduced ARAB3absinthium · Asteraceae -
Artemisia annua L. Introduced ARAN3sweet sagewort · Asteraceae -
Artemisia biennis Willd. Both ARBI2biennial wormwood · Asteraceae - Artemisia biennis Willd. var. biennis Introduced ARBIBbiennial wormwood · Asteraceae
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Artemisia ludoviciana Nutt. Both ARLUwhite sagebrush · Asteraceae - Artemisia ludoviciana Nutt. ssp. ludoviciana Native ARLUL2white sagebrush · Asteraceae
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Artemisia stelleriana Besser Introduced ARST6oldwoman · Asteraceae -
Aruncus dioicus (Walter) Fernald Both ARDI8bride's feathers · Rosaceae - Aruncus dioicus (Walter) Fernald var. dioicus Native ARDID2bride's feathers · Rosaceae
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Asarum canadense L. Native ASCACanadian wildginger · Aristolochiaceae -
Asclepias exaltata L. Native ASEXpoke milkweed · Asclepiadaceae -
Asclepias incarnata L. Native ASINswamp milkweed · Asclepiadaceae - Asclepias incarnata L. ssp. incarnata Native ASINIswamp milkweed · Asclepiadaceae
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Asclepias purpurascens L. Native ASPU2purple milkweed · Asclepiadaceae -
Asclepias quadrifolia Jacq. Native ASQUfourleaf milkweed · Asclepiadaceae -
Asclepias syriaca L. Native ASSYcommon milkweed · Asclepiadaceae -
Asclepias tuberosa L. Native ASTUbutterfly milkweed · Asclepiadaceae -
Asclepias viridiflora Raf. Native ASVIgreen comet milkweed · Asclepiadaceae -
Asimina triloba (L.) Dunal Native ASTRpawpaw · Annonaceae -
Asparagus officinalis L. Introduced ASOFgarden asparagus · Liliaceae -
Asplenium platyneuron (L.) Britton, Sterns & Poggenb. Native ASPLebony spleenwort · Aspleniaceae - Asplenium platyneuron (L.) Britton, Sterns & Poggenb. var. platyneuron Native ASPLPebony spleenwort · Aspleniaceae
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Asplenium rhizophyllum L. Native ASRH2walking fern · Aspleniaceae -
Asplenium trichomanes L. Native ASTR2maidenhair spleenwort · Aspleniaceae -
Astragalus canadensis L. Native ASCA11Canadian milkvetch · Fabaceae - Astragalus canadensis L. var. canadensis Native ASCAC6Canadian milkvetch · Fabaceae
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Athyrium filix-femina (L.) Roth Native ATFIcommon ladyfern · Dryopteridaceae - Athyrium filix-femina (L.) Roth ssp. angustum (Willd.) R.T. Clausen Native ATFIAsubarctic ladyfern · Dryopteridaceae
- Athyrium filix-femina (L.) Roth ssp. asplenioides (Michx.) Hultén Native ATFIA2asplenium ladyfern · Dryopteridaceae
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Atriplex littoralis L. Introduced ATLI3grassleaf orache · Chenopodiaceae -
Atriplex patula L. Introduced ATPA4spear saltbush · Chenopodiaceae -
Atriplex prostrata Bouchér ex DC. Native ATPRtriangle orache · Chenopodiaceae -
Aureolaria flava (L.) Farw. Native AUFLsmooth yellow false foxglove · Scrophulariaceae - Aureolaria flava (L.) Farw. var. flava Native AUFLFsmooth yellow false foxglove · Scrophulariaceae
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Aureolaria pedicularia (L.) Raf. Native AUPE2fernleaf yellow false foxglove · Scrophulariaceae -
Aureolaria virginica (L.) Pennell Native AUVIdowny yellow false foxglove · Scrophulariaceae -
Avena fatua L. Introduced AVFAwild oat · Poaceae - Avena sativa L. Introduced AVSAcommon oat · Poaceae