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 1,401–1,450 of 2,748 (native).

• 
  Lathyrus ochroleucus Hook. Native LAOC2

  cream pea · Fabaceae 10 counties
• 
  Lathyrus palustris L. Native LAPA4

  marsh pea · Fabaceae 20 counties
• 
  Lathyrus venosus Muhl. ex Willd. Native LAVE

  veiny pea · Fabaceae 16 counties
• 
  Lechea intermedia Leggett ex Britton Native LEIN

  largepod pinweed · Cistaceae 27 counties
• 
  Lechea intermedia Leggett ex Britton var. intermedia Native LEINI2

  largepod pinweed · Cistaceae 27 counties
• 
  Lechea minor L. Native LEMI

  thymeleaf pinweed · Cistaceae 8 counties
• 
  Lechea mucronata Raf. Native LEMU3

  hairy pinweed · Cistaceae 18 counties
• 
  Lechea pulchella Raf. Native LEPU4

  Leggett's pinweed · Cistaceae 32 counties
• 
  Lechea pulchella Raf. var. pulchella Native LEPUP2

  Leggett's pinweed · Cistaceae 32 counties
• 
  Lechea racemulosa Michx. Native LERA

  Illinois pinweed · Cistaceae 41 counties
• 
  Ledum groenlandicum Oeder Native LEGR

  bog Labrador tea · Ericaceae 7 counties
• 
  Leersia oryzoides (L.) Sw. Native LEOR

  rice cutgrass · Poaceae 65 counties
• 
  Leersia virginica Willd. Native LEVI2

  whitegrass · Poaceae 63 counties
• 
  Leiophyllum buxifolium (Bergius) Elliott Native LEBU

  sandmyrtle · Ericaceae 1 county
• 
  Lemna minor L. Native LEMI3

  common duckweed · Lemnaceae 50 counties
• 
  Lemna obscura (Austin) Daubs Native LEOB2

  little duckweed · Lemnaceae 1 county
• 
  Lemna perpusilla Torr. Native LEPE

  minute duckweed · Lemnaceae 10 counties
• 
  Lemna trisulca L. Native LETR

  star duckweed · Lemnaceae 18 counties
• 
  Lemna turionifera Landolt Native LETU2

  turion duckweed · Lemnaceae 8 counties
• 
  Lemna valdiviana Phil. Native LEVA

  valdivia duckweed · Lemnaceae 3 counties
• 
  Lepidium virginicum L. Native LEVI3

  Virginia pepperweed · Brassicaceae 58 counties
• 
  Lepidium virginicum L. var. virginicum Native LEVIV2

  Virginia pepperweed · Brassicaceae 58 counties
• 
  Leptochloa fusca (L.) Kunth Native LEFU21

  Malabar sprangletop · Poaceae 8 counties
• 
  Leptochloa fusca (L.) Kunth ssp. fascicularis (Lam.) N. Snow Native LEFUF

  bearded sprangletop · Poaceae 8 counties
• 
  Leptochloa panicea (Retz.) Ohwi Native LEPA6

  mucronate sprangletop · Poaceae 2 counties
• 
  Leptochloa panicea (Retz.) Ohwi ssp. brachiata (Steud.) N. Snow Native LEPAB

  mucronate sprangeltop · Poaceae 2 counties
• 
  Leptosiphon androsaceus Benth. Native LEAN19

  false babystars · Polemoniaceae 1 county
• 
  Lespedeza angustifolia (Pursh) Elliott Native LEAN

  narrowleaf lespedeza · Fabaceae 1 county
• 
  Lespedeza capitata Michx. Native LECA8

  roundhead lespedeza · Fabaceae 38 counties
• 
  Lespedeza frutescens (L.) Hornem. Native LEFR5

  shrubby lespedeza · Fabaceae 58 counties
• 
  Lespedeza hirta (L.) Hornem. Native LEHI2

  hairy lespedeza · Fabaceae 59 counties
• 
  Lespedeza hirta (L.) Hornem. ssp. hirta Native LEHIH2

  hairy lespedeza · Fabaceae 59 counties
• 
  Lespedeza procumbens Michx. Native LEPR

  trailing lespedeza · Fabaceae 39 counties
• 
  Lespedeza repens (L.) W.P.C. Barton Native LERE2

  creeping lespedeza · Fabaceae 36 counties
• 
  Lespedeza stuevei Nutt. Native LEST5

  tall lespedeza · Fabaceae 2 counties
• 
  Lespedeza violacea (L.) Pers. Native LEVI6

  violet lespedeza · Fabaceae 40 counties
• 
  Lespedeza virginica (L.) Britton Native LEVI7

  slender lespedeza · Fabaceae 31 counties
• 
  Leucospora multifida (Michx.) Nutt. Native LEMU

  narrowleaf paleseed · Scrophulariaceae 3 counties
• 
  Leymus mollis (Trin.) Pilg. Native LEMO8

  American dunegrass · Poaceae 1 county
• 
  Leymus mollis (Trin.) Pilg. ssp. mollis Native LEMOM2

  American dunegrass · Poaceae 1 county
• 
  Liatris pycnostachya Michx. Native LIPY

  prairie blazing star · Asteraceae 1 county
• 
  Liatris pycnostachya Michx. var. pycnostachya Native LIPYP

  prairie blazing star · Asteraceae 1 county
• 
  Liatris scariosa (L.) Willd. Native LISC2

  devil's bite · Asteraceae 14 counties
• 
  Liatris spicata (L.) Willd. Native LISP

  dense blazing star · Asteraceae 23 counties
• 
  Ligusticum canadense (L.) Britton Native LICA16

  Canadian licorice-root · Apiaceae 3 counties
• 
  Lilium canadense L. Native LICA3

  Canada lily · Liliaceae 56 counties
• 
  Lilium canadense L. ssp. canadense Native LICAC

  Canada lily · Liliaceae 49 counties
• 
  Lilium canadense L. ssp. editorum (Fernald) Wherry Native LICAE

  Canada lily · Liliaceae 36 counties
• 
  Lilium philadelphicum L. Native LIPH

  wood lily · Liliaceae 48 counties
• 
  Lilium philadelphicum L. var. philadelphicum Native LIPHP

  wood lily · Liliaceae 47 counties