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 1,051–1,100 of 3,901.

• 
  Cunila origanoides (L.) Britton Native CUOR

  common dittany · Lamiaceae 41 counties
• 
  Cuphea viscosissima Jacq. Native CUVI

  blue waxweed · Lythraceae 39 counties
• 
  Cuscuta cephalanthi Engelm. Native CUCE

  buttonbush dodder · Cuscutaceae 16 counties
• 
  Cuscuta compacta Juss. ex Choisy Native CUCO2

  compact dodder · Cuscutaceae 11 counties
• 
  Cuscuta compacta Juss. ex Choisy var. compacta Native CUCOC

  compact dodder · Cuscutaceae 11 counties
• 
  Cuscuta coryli Engelm. Native CUCO3

  hazel dodder · Cuscutaceae 6 counties
• 
  Cuscuta epilinum Weihe Introduced CUEP2

  flax dodder · Cuscutaceae 1 county
• 
  Cuscuta epithymum (L.) L. Introduced CUEP

  clover dodder · Cuscutaceae 8 counties
• 
  Cuscuta gronovii Willd. ex Schult. Native CUGR

  scaldweed · Cuscutaceae 58 counties
• 
  Cuscuta gronovii Willd. ex Schult. var. gronovii Native CUGRG

  scaldweed · Cuscutaceae 58 counties
• 
  Cuscuta pentagona Engelm. Native CUPE3

  fiveangled dodder · Cuscutaceae 19 counties
• 
  Cuscuta pentagona Engelm. var. pentagona Native CUPEP2

  fiveangled dodder · Cuscutaceae 18 counties
• 
  Cuscuta polygonorum Engelm. Native CUPO

  smartweed dodder · Cuscutaceae 10 counties
• 
  Cyclachaena xanthiifolia (Nutt.) Fresen. Native CYXA2

  carelessweed · Asteraceae 6 counties
• 
  Cycloloma atriplicifolium (Spreng.) J.M. Coult. Native CYAT

  winged pigweed · Chenopodiaceae 9 counties
• 
  Cyclospermum leptophyllum (Pers.) Sprague ex Britton & P. Wilson Introduced CYLE7

  marsh parsley · Apiaceae 1 county
• 
  Cydonia oblonga Mill. Introduced CYOB2

  quince · Rosaceae 5 counties
• 
  Cymbalaria muralis G. Gaertn., B. Mey. & Scherb. Introduced CYMU

  Kenilworth ivy · Scrophulariaceae 16 counties
• 
  Cymophyllus fraserianus (Ker Gawl.) Kartesz & Gandhi Native CYFR4

  Fraser's cymophyllus · Cyperaceae 1 county
• 
  Cynanchum laeve (Michx.) Pers. Native CYLA

  honeyvine · Asclepiadaceae 2 counties
• 
  Cynanchum louiseae Kartesz & Gandhi Introduced CYLO11

  Louise's swallow-wort · Asclepiadaceae 10 counties
• 
  Cynanchum rossicum (Kleopow) Borhidi Introduced CYRO8

  European swallow-wort · Asclepiadaceae 1 county
• 
  Cynodon dactylon (L.) Pers. Introduced CYDA

  Bermudagrass · Poaceae 13 counties
• 
  Cynoglossum officinale L. Introduced CYOF

  gypsyflower · Boraginaceae 39 counties
• 
  Cynoglossum virginianum L. Native CYVI

  wild comfrey · Boraginaceae 40 counties
• 
  Cynoglossum virginianum L. var. boreale (Fernald) Cooperr. Native CYVIB

  wild comfrey · Boraginaceae 8 counties
• 
  Cynosurus cristatus L. Introduced CYCR

  crested dogstail grass · Poaceae 9 counties
• 
  Cynosurus echinatus L. Introduced CYEC

  bristly dogstail grass · Poaceae 6 counties
• 
  Cyperus acuminatus Torr. & Hook. ex Torr. Native CYAC2

  tapertip flatsedge · Cyperaceae 2 counties
• 
  Cyperus aggregatus (Willd.) Endl. Native CYAG

  inflatedscale flatsedge · Cyperaceae 1 county
• 
  Cyperus amuricus Maxim. Introduced CYAM2

  Asian flatsedge · Cyperaceae 4 counties
• 
  Cyperus bipartitus Torr. Native CYBI6

  slender flatsedge · Cyperaceae 51 counties
• 
  Cyperus compressus L. Native CYCO

  poorland flatsedge · Cyperaceae 3 counties
• 
  Cyperus croceus Vahl Native CYCR6

  Baldwin's flatsedge · Cyperaceae 1 county
• 
  Cyperus dentatus Torr. Native CYDE2

  toothed flatsedge · Cyperaceae 21 counties
• 
  Cyperus diandrus Torr. Native CYDI3

  umbrella flatsedge · Cyperaceae 7 counties
• 
  Cyperus difformis L. Introduced CYDI4

  variable flatsedge · Cyperaceae 1 county
• 
  Cyperus echinatus (L.) Alph. Wood Native CYEC2

  globe flatsedge · Cyperaceae 12 counties
• 
  Cyperus erythrorhizos Muhl. Native CYER2

  redroot flatsedge · Cyperaceae 13 counties
• 
  Cyperus esculentus L. Both CYES

  yellow nutsedge · Cyperaceae 51 counties
• 
  Cyperus esculentus L. var. leptostachyus Boeckeler Introduced CYESL

  yellow nutsedge · Cyperaceae 51 counties
• 
  Cyperus filicinus Vahl Native CYFI

  fern flatsedge · Cyperaceae 2 counties
• 
  Cyperus flavescens L. Native CYFL

  yellow flatsedge · Cyperaceae 27 counties
• 
  Cyperus flavicomus Michx. Native CYFL5

  whiteedge flatsedge · Cyperaceae 2 counties
• 
  Cyperus fuscus L. Introduced CYFU3

  brown flatsedge · Cyperaceae 2 counties
• 
  Cyperus grayi Torr. Native CYGR2

  Gray's flatsedge · Cyperaceae 1 county
• 
  Cyperus houghtonii Torr. Native CYHO

  Houghton's flatsedge · Cyperaceae 6 counties
• 
  Cyperus iria L. Introduced CYIR

  ricefield flatsedge · Cyperaceae 1 county
• 
  Cyperus lancastriensis Porter ex A. Gray Native CYLA3

  manyflower flatsedge · Cyperaceae 7 counties
• 
  Cyperus lupulinus (Spreng.) Marcks Native CYLU2

  Great Plains flatsedge · Cyperaceae 39 counties