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 1,901–1,950 of 3,901.

• 
  Juncus subcaudatus (Engelm.) Coville & S.F. Blake Native JUSU

  woodland rush · Juncaceae 49 counties
• 
  Juncus subcaudatus (Engelm.) Coville & S.F. Blake var. subcaudatus Native JUSUS2

  woodland rush · Juncaceae 49 counties
• 
  Juncus tenuis Willd. Native JUTE

  poverty rush · Juncaceae 67 counties
• 
  Juncus torreyi Coville Native JUTO

  Torrey's rush · Juncaceae 12 counties
• 
  Juniperus communis L. Native JUCO6

  common juniper · Cupressaceae 26 counties
• 
  Juniperus communis L. var. depressa Pursh Native JUCOD

  common juniper · Cupressaceae 26 counties
• 
  Juniperus virginiana L. Native JUVI

  eastern redcedar · Cupressaceae 46 counties
• 
  Juniperus virginiana L. var. virginiana Native JUVIV

  eastern redcedar · Cupressaceae 46 counties
• 
  Justicia americana (L.) Vahl Native JUAM

  American water-willow · Acanthaceae 45 counties
• 
  Kallstroemia parviflora J.B.S. Norton Native KAPA

  warty caltrop · Zygophyllaceae 1 county
• 
  Kalmia angustifolia L. Native KAAN

  sheep laurel · Ericaceae 28 counties
• 
  Kalmia latifolia L. Native KALA

  mountain laurel · Ericaceae 64 counties
• 
  Kalmia polifolia Wangenh. Native KAPO

  bog laurel · Ericaceae 7 counties
• 
  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
• 
  Koeleria macrantha (Ledeb.) Schult. Native KOMA

  prairie Junegrass · Poaceae 1 county
• 
  Koelreuteria paniculata Laxm. Introduced KOPA

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

  beautybush · Caprifoliaceae 3 counties
• 
  Kosteletzkya virginica (L.) C. Presl ex A. Gray Native KOVI

  Virginia saltmarsh mallow · Malvaceae 1 county
• 
  Krigia biflora (Walter) S.F. Blake Native KRBI

  twoflower dwarfdandelion · Asteraceae 35 counties
• 
  Krigia biflora (Walter) S.F. Blake var. biflora Native KRBIB

  twoflower dwarfdandelion · Asteraceae 35 counties
• 
  Krigia virginica (L.) Willd. Native KRVI

  Virginia dwarfdandelion · Asteraceae 27 counties
• 
  Kummerowia stipulacea (Maxim.) Makino Introduced KUST

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

  Japanese clover · Fabaceae 17 counties
• 
  Kyllinga gracillima Miq. Native KYGR

  pasture spikesedge · Cyperaceae 2 counties
• 
  Kyllinga pumila Michx. Native KYPU

  low spikesedge · Cyperaceae 5 counties
• 
  Lablab purpureus (L.) Sweet Introduced LAPU6

  hyacinthbean · Fabaceae 2 counties
• 
  Lactuca biennis (Moench) Fernald Native LABI

  tall blue lettuce · Asteraceae 56 counties
• 
  Lactuca canadensis L. Native LACA

  Canada lettuce · Asteraceae 65 counties
• 
  Lactuca floridana (L.) Gaertn. Native LAFL

  woodland lettuce · Asteraceae 31 counties
• 
  Lactuca floridana (L.) Gaertn. var. floridana Native LAFLF

  woodland lettuce · Asteraceae 27 counties
• 
  Lactuca floridana (L.) Gaertn. var. villosa (Jacq.) Cronquist Native LAFLV

  woodland lettuce · Asteraceae 17 counties
• 
  Lactuca hirsuta Muhl. ex Nutt. Native LAHI

  hairy lettuce · Asteraceae 14 counties
• 
  Lactuca hirsuta Muhl. ex Nutt. var. hirsuta Native LAHIH3

  hairy lettuce · Asteraceae 3 counties
• 
  Lactuca hirsuta Muhl. ex Nutt. var. sanguinea (Bigelow) Fernald Native LAHIS2

  hairy lettuce · Asteraceae 13 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
• 
  Lactuca tatarica (L.) C.A. Mey. Native LATA

  blue lettuce · Asteraceae 1 county
• 
  Lactuca tatarica (L.) C.A. Mey. var. pulchella (Pursh) Breitung Native LATAP

  blue lettuce · Asteraceae 1 county
• 
  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
• 
  Landoltia punctata (G. Mey.) D.H. Les & D.J. Crawford Native LAPU12

  dotted duckmeat · Lemnaceae 2 counties