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 501–550 of 1,109 (introduced).

• 
  Ipomoea batatas (L.) Lam. Introduced IPBA2

  sweetpotato · Convolvulaceae 6 counties
• 
  Ipomoea coccinea L. Introduced IPCO3

  redstar · Convolvulaceae 7 counties
• 
  Ipomoea hederacea Jacq. Introduced IPHE

  ivyleaf morning-glory · Convolvulaceae 22 counties
• 
  Ipomoea purpurea (L.) Roth Introduced IPPU2

  tall morning-glory · Convolvulaceae 20 counties
• 
  Ipomoea quamoclit L. Introduced IPQU

  cypressvine · Convolvulaceae 3 counties
• 
  Ipomoea tricolor Cav. Introduced IPTR3

  grannyvine · Convolvulaceae 3 counties
• 
  Iris ensata Thunb. Introduced IREN

  Japanese iris · Iridaceae 2 counties
• 
  Iris flavescens Delile Introduced IRFL2

  lemonyellow iris · Iridaceae 3 counties
• ⚘
  Iris germanica L. Introduced IRGE

  German iris · Iridaceae 20 counties
• 
  Iris pseudacorus L. Introduced IRPS

  paleyellow iris · Iridaceae 24 counties
• 
  Iris sibirica L. Introduced IRSI

  Siberian iris · Iridaceae 4 counties
• 
  Ixeris stolonifera A. Gray Introduced IXST

  creeping lettuce · Asteraceae 6 counties
• 
  Jasione montana L. Introduced JAMO

  sheepbit · Campanulaceae 3 counties
• 
  Juncus inflexus L. Introduced JUIN

  European meadow rush · Juncaceae 1 county
• 
  Kerria japonica (L.) DC. Introduced KEJA

  Japanese rose · Rosaceae 5 counties
• 
  Kickxia elatine (L.) Dumort. Introduced KIEL

  sharpleaf cancerwort · Scrophulariaceae 5 counties
• 
  Kickxia spuria (L.) Dumort. Introduced KISP

  roundleaf cancerwort · Scrophulariaceae 2 counties
• 
  Knautia arvensis (L.) J.M. Coult. Introduced KNAR

  field scabiosa · Dipsacaceae 8 counties
• 
  Koelreuteria paniculata Laxm. Introduced KOPA

  goldenrain tree · Sapindaceae 7 counties
• 
  Kolkwitzia amabilis Graebn. Introduced KOAM80

  beautybush · Caprifoliaceae 3 counties
• 
  Kummerowia stipulacea (Maxim.) Makino Introduced KUST

  Korean clover · Fabaceae 19 counties
• 
  Kummerowia striata (Thunb.) Schindl. Introduced KUST2

  Japanese clover · Fabaceae 17 counties
• 
  Lablab purpureus (L.) Sweet Introduced LAPU6

  hyacinthbean · Fabaceae 2 counties
• 
  Lactuca saligna L. Introduced LASA

  willowleaf lettuce · Asteraceae 27 counties
• 
  Lactuca sativa L. Introduced LASA3

  garden lettuce · Asteraceae 5 counties
• 
  Lactuca serriola L. Introduced LASE

  prickly lettuce · Asteraceae 57 counties
• 
  Lagenaria siceraria (Molina) Standl. Introduced LASI

  bottle gourd · Cucurbitaceae 2 counties
• 
  Lamium album L. Introduced LAAL

  white deadnettle · Lamiaceae 2 counties
• 
  Lamium amplexicaule L. Introduced LAAM

  henbit deadnettle · Lamiaceae 42 counties
• 
  Lamium maculatum L. Introduced LAMA

  spotted henbit · Lamiaceae 21 counties
• 
  Lamium purpureum L. Introduced LAPU2

  purple deadnettle · Lamiaceae 35 counties
• 
  Lamium purpureum L. var. purpureum Introduced LAPUP

  purple deadnettle · Lamiaceae 35 counties
• 
  Lamprocapnos spectabilis (L.) Fukuhara Introduced LASP8

  bleeding heart · Fumariaceae 4 counties
• 
  Lappula marginata (M. Bieb.) Guerke Introduced LAMA9

  margined stickseed · Boraginaceae 1 county
• 
  Lappula squarrosa (Retz.) Dumort. Introduced LASQ

  European stickseed · Boraginaceae 14 counties
• 
  Lapsana communis L. Introduced LACO3

  common nipplewort · Asteraceae 25 counties
• 
  Larix decidua Mill. Introduced LADE2

  European larch · Pinaceae 13 counties
• 
  Larix kaempferi (Lam.) Carrière Introduced LAKA2

  Japanese larch · Pinaceae 4 counties
• 
  Lathyrus aphaca L. Introduced LAAP2

  yellow pea · Fabaceae 1 county
• 
  Lathyrus latifolius L. Introduced LALA4

  perennial pea · Fabaceae 41 counties
• 
  Lathyrus tuberosus L. Introduced LATU

  tuberous sweetpea · Fabaceae 5 counties
• 
  Legousia speculum-veneris (L.) Fisch. ex A. DC. Introduced LESP2

  European Venus' looking glass · Campanulaceae 2 counties
• 
  Lens culinaris Medik. Introduced LECU2

  lentil · Fabaceae 5 counties
• 
  Leontodon autumnalis L. Introduced LEAU2

  fall dandelion · Asteraceae 10 counties
• 
  Leontodon taraxacoides (Vill.) Mérat Introduced LETA

  lesser hawkbit · Asteraceae 7 counties
• 
  Leontodon taraxacoides (Vill.) Mérat ssp. taraxacoides Introduced LETAT

  lesser hawkbit · Asteraceae 7 counties
• 
  Leonurus cardiaca L. Introduced LECA2

  common motherwort · Lamiaceae 62 counties
• 
  Leonurus cardiaca L. ssp. cardiaca Introduced LECAC7

  common motherwort · Lamiaceae 62 counties
• 
  Leonurus sibiricus L. Introduced LESI

  honeyweed · Lamiaceae 2 counties
• 
  Lepidium campestre (L.) W.T. Aiton Introduced LECA5

  field pepperweed · Brassicaceae 66 counties