Pennsylvania

• Adams 42001
  1,101 taxa Open ↗
• Allegheny 42003
  1,943 taxa Open ↗
• Armstrong 42005
  1,126 taxa Open ↗
• Beaver 42007
  1,402 taxa Open ↗
• Bedford 42009
  1,989 taxa Open ↗
• Berks 42011
  2,115 taxa Open ↗
• Blair 42013
  1,613 taxa Open ↗
• Bradford 42015
  1,111 taxa Open ↗
• Bucks 42017
  2,298 taxa Open ↗
• Butler 42019
  1,422 taxa Open ↗

Showing 301–350 of 1,109 (introduced).

• 
  Cytisus scoparius (L.) Link var. scoparius Introduced CYSCS2

  Scotch broom · Fabaceae 10 counties
• 
  Dactylis glomerata L. Introduced DAGL

  orchardgrass · Poaceae 66 counties
• 
  Dactylis glomerata L. ssp. glomerata Introduced DAGLG

  orchardgrass · Poaceae 66 counties
• 
  Dactyloctenium aegyptium (L.) Willd. Introduced DAAE

  Egyptian grass · Poaceae 2 counties
• 
  Dasypyrum villosum (L.) Coss. & Durieu ex P. Candargy Introduced DAVI2

  mosquitograss · Poaceae 1 county
• 
  Datura stramonium L. Introduced DAST

  jimsonweed · Solanaceae 36 counties
• 
  Daucus carota L. Introduced DACA6

  Queen Anne's lace · Apiaceae 67 counties
• 
  Descurainia sophia (L.) Webb ex Prantl Introduced DESO2

  herb sophia · Brassicaceae 7 counties
• 
  Deutzia scabra Thunb. Introduced DESC4

  fuzzy pride-of-Rochester · Hydrangeaceae 9 counties
• 
  Dianthus armeria L. Introduced DIAR

  Deptford pink · Caryophyllaceae 62 counties
• 
  Dianthus barbatus L. Introduced DIBA

  sweetwilliam · Caryophyllaceae 35 counties
• 
  Dianthus deltoides L. Introduced DIDE

  maiden pink · Caryophyllaceae 9 counties
• 
  Dianthus plumarius L. Introduced DIPL

  feathered pink · Caryophyllaceae 1 county
• 
  Digitalis lanata Ehrh. Introduced DILA3

  Grecian foxglove · Scrophulariaceae 3 counties
• 
  Digitalis lutea L. Introduced DILU

  straw foxglove · Scrophulariaceae 2 counties
• 
  Digitalis purpurea L. Introduced DIPU

  purple foxglove · Scrophulariaceae 7 counties
• 
  Digitalis purpurea L. ssp. purpurea Introduced DIPUP2

  purple foxglove · Scrophulariaceae 7 counties
• 
  Digitaria ischaemum (Schreb.) Schreb. ex Muhl. Introduced DIIS

  smooth crabgrass · Poaceae 57 counties
• 
  Digitaria sanguinalis (L.) Scop. Introduced DISA

  hairy crabgrass · Poaceae 61 counties
• 
  Dioscorea oppositifolia L. Introduced DIOP

  Chinese yam · Dioscoreaceae 9 counties
• 
  Diplotaxis muralis (L.) DC. Introduced DIMU2

  annual wallrocket · Brassicaceae 4 counties
• 
  Diplotaxis tenuifolia (L.) DC. Introduced DITE4

  perennial wallrocket · Brassicaceae 6 counties
• 
  Dipsacus fullonum L. Introduced DIFU2

  Fuller's teasel · Dipsacaceae 50 counties
• 
  Dipsacus laciniatus L. Introduced DILA4

  cutleaf teasel · Dipsacaceae 4 counties
• 
  Dipsacus sativus (L.) Honck. Introduced DISA9

  Indian teasel · Dipsacaceae 5 counties
• 
  Draba verna L. Introduced DRVE2

  spring draba · Brassicaceae 30 counties
• 
  Duchesnea indica (Andrews) Teschem. Introduced DUIN2

  Indian strawberry · Rosaceae 17 counties
• 
  Dysphania botrys (L.) Mosyakin & Clemants Introduced DYBO

  Jerusalem oak goosefoot · Chenopodiaceae 33 counties
• 
  Dysphania multifida (L.) Mosyakin & Clemants Introduced DYMU

  cutleaf goosefoot · Chenopodiaceae 3 counties
• 
  Dysphania pumilio (R. Br.) Mosyakin & Clemants Introduced DYPU

  clammy goosefoot · Chenopodiaceae 5 counties
• 
  Ecballium elaterium (L.) A. Rich. Introduced ECEL

  squirting cucumber · Cucurbitaceae 1 county
• 
  Echinochloa colona (L.) Link Introduced ECCO2

  jungle rice · Poaceae 1 county
• 
  Echinochloa crus-galli (L.) P. Beauv. Introduced ECCR

  barnyardgrass · Poaceae 62 counties
• ⚘
  Echinochloa frumentacea Link Introduced ECFR

  billion-dollar grass · Poaceae 7 counties
• 
  Echinops sphaerocephalus L. Introduced ECSP

  great globethistle · Asteraceae 3 counties
• 
  Echium plantagineum L. Introduced ECPL

  salvation jane · Boraginaceae 1 county
• 
  Echium vulgare L. Introduced ECVU

  common viper's bugloss · Boraginaceae 52 counties
• 
  Egeria densa Planch. Introduced EGDE

  Brazilian waterweed · Hydrocharitaceae 4 counties
• 
  Elaeagnus angustifolia L. Introduced ELAN

  Russian olive · Elaeagnaceae 8 counties
• 
  Elaeagnus umbellata Thunb. Introduced ELUM

  autumn olive · Elaeagnaceae 21 counties
• 
  Elaeagnus umbellata Thunb. var. parvifolia (Wall. ex Royle) C.K. Schneid. Introduced ELUMP

  autumn olive · Elaeagnaceae 21 counties
• 
  Eleusine indica (L.) Gaertn. Introduced ELIN3

  Indian goosegrass · Poaceae 44 counties
• 
  Eleutherococcus pentaphyllus (Siebold & Zucc.) Nakai Introduced ELPE6

  ginseng · Araliaceae 5 counties
• 
  Elymus repens (L.) Gould Introduced ELRE4

  quackgrass · Poaceae 62 counties
• 
  Epilobium hirsutum L. Introduced EPHI

  codlins and cream · Onagraceae 19 counties
• 
  Epilobium parviflorum Schreb. Introduced EPPA5

  smallflower hairy willowherb · Onagraceae 1 county
• 
  Epipactis helleborine (L.) Crantz Introduced EPHE

  broadleaf helleborine · Orchidaceae 34 counties
• 
  Eragrostis cilianensis (All.) Vign. ex Janchen Introduced ERCI

  stinkgrass · Poaceae 44 counties
• 
  Eragrostis minor Host Introduced ERMI5

  little lovegrass · Poaceae 31 counties
• 
  Eragrostis pilosa (L.) P. Beauv. Introduced ERPI2

  Indian lovegrass · Poaceae 25 counties