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 551–600 of 2,748 (native).

• 
  Carex umbellata Schkuhr ex Willd. Native CAUM4

  parasol sedge · Cyperaceae 41 counties
• 
  Carex utriculata Boott Native CAUT

  Northwest Territory sedge · Cyperaceae 30 counties
• 
  Carex vestita Willd. Native CAVE9

  velvet sedge · Cyperaceae 20 counties
• 
  Carex virescens Muhl. ex Willd. Native CAVI4

  ribbed sedge · Cyperaceae 51 counties
• 
  Carex viridula Michx. Native CAVI5

  little green sedge · Cyperaceae 2 counties
• 
  Carex viridula Michx. ssp. viridula Native CAVIV

  little green sedge · Cyperaceae 2 counties
• 
  Carex vulpinoidea Michx. Native CAVU2

  fox sedge · Cyperaceae 66 counties
• 
  Carex vulpinoidea Michx. var. vulpinoidea Native CAVUV

  fox sedge · Cyperaceae 66 counties
• 
  Carex wiegandii Mack. Native CAWI7

  Wiegand's sedge · Cyperaceae 2 counties
• 
  Carex willdenowii Schkuhr ex Willd. Native CAWI2

  Willdenow's sedge · Cyperaceae 34 counties
• 
  Carex woodii Dewey Native CAWO2

  pretty sedge · Cyperaceae 19 counties
• ⚘
  Carex ×aestivaliformis Mack. [aestivalis × gracillima] Native CAAE3

  sedge · Cyperaceae 7 counties
• 
  Carpinus caroliniana Walter Native CACA18

  American hornbeam · Betulaceae 67 counties
• 
  Carpinus caroliniana Walter ssp. virginiana (Marshall) Furlow Native CACAV

  American hornbeam · Betulaceae 67 counties
• 
  Carya cordiformis (Wangenh.) K. Koch Native CACO15

  bitternut hickory · Juglandaceae 55 counties
• 
  Carya glabra (Mill.) Sweet Native CAGL8

  pignut hickory · Juglandaceae 49 counties
• 
  Carya laciniosa (Michx. f.) G. Don Native CALA21

  shellbark hickory · Juglandaceae 12 counties
• 
  Carya ovalis (Wangenh.) Sarg. Native CAOV3

  red hickory · Juglandaceae 35 counties
• 
  Carya ovata (Mill.) K. Koch Native CAOV2

  shagbark hickory · Juglandaceae 66 counties
• 
  Carya tomentosa (Lam.) Nutt. Native CATO6

  mockernut hickory · Juglandaceae 46 counties
• 
  Castanea dentata (Marshall) Borkh. Native CADE12

  American chestnut · Fagaceae 67 counties
• 
  Castanea pumila (L.) Mill. Native CAPU9

  chinquapin · Fagaceae 9 counties
• 
  Castanea pumila (L.) Mill. var. pumila Native CAPUP3

  chinquapin · Fagaceae 9 counties
• 
  Castilleja coccinea (L.) Spreng. Native CACO17

  scarlet Indian paintbrush · Scrophulariaceae 25 counties
• 
  Catalpa bignonioides Walter Native CABI8

  southern catalpa · Bignoniaceae 28 counties
• 
  Catalpa speciosa (Warder) Warder ex Engelm. Native CASP8

  northern catalpa · Bignoniaceae 10 counties
• 
  Caulophyllum thalictroides (L.) Michx. Native CATH2

  blue cohosh · Berberidaceae 57 counties
• 
  Ceanothus americanus L. Native CEAM

  New Jersey tea · Rhamnaceae 66 counties
• 
  Celastrus scandens L. Native CESC

  American bittersweet · Celastraceae 62 counties
• 
  Celtis occidentalis L. Native CEOC

  common hackberry · Ulmaceae 46 counties
• ⚘
  Celtis pumila Pursh Native CEPU10

  dwarf hackberry · Ulmaceae 33 counties
• 
  Cenchrus longispinus (Hack.) Fernald Native CELO3

  mat sandbur · Poaceae 19 counties
• 
  Cenchrus tribuloides L. Native CETR

  sanddune sandbur · Poaceae 4 counties
• 
  Cephalanthus occidentalis L. Native CEOC2

  common buttonbush · Rubiaceae 55 counties
• 
  Cerastium arvense L. ssp. strictum (L.) Ugborogho Native CEARS2

  field chickweed · Caryophyllaceae 2 counties
• 
  Cerastium arvense L. ssp. velutinum (Raf.) Ugborogho Native CEARV2

  field chickweed · Caryophyllaceae 32 counties
• 
  Cerastium arvense L. ssp. velutinum (Raf.) Ugborogho var. villosum (Muhl. ex Darl.) Hollick & Britton Native CEARV4

  field chickweed · Caryophyllaceae 2 counties
• 
  Cerastium nutans Raf. Native CENU2

  nodding chickweed · Caryophyllaceae 48 counties
• 
  Cerastium nutans Raf. var. nutans Native CENUN

  nodding chickweed · Caryophyllaceae 48 counties
• 
  Ceratophyllum demersum L. Native CEDE4

  coon's tail · Ceratophyllaceae 30 counties
• 
  Ceratophyllum echinatum A. Gray Native CEEC2

  spineless hornwort · Ceratophyllaceae 21 counties
• 
  Cercis canadensis L. Native CECA4

  eastern redbud · Fabaceae 32 counties
• 
  Cercis canadensis L. var. canadensis Native CECAC

  eastern redbud · Fabaceae 32 counties
• 
  Chaerophyllum procumbens (L.) Crantz Native CHPR

  spreading chervil · Apiaceae 30 counties
• 
  Chaerophyllum procumbens (L.) Crantz var. procumbens Native CHPRP

  spreading chervil · Apiaceae 1 county
• 
  Chamaecrista fasciculata (Michx.) Greene Native CHFA2

  partridge pea · Fabaceae 22 counties
• 
  Chamaecrista fasciculata (Michx.) Greene var. fasciculata Native CHFAF

  partridge pea · Fabaceae 22 counties
• 
  Chamaecrista nictitans (L.) Moench Native CHNI2

  sensitive partridge pea · Fabaceae 45 counties
• 
  Chamaecrista nictitans (L.) Moench ssp. nictitans Native CHNIN

  sensitive partridge pea · Fabaceae 45 counties
• 
  Chamaecrista nictitans (L.) Moench ssp. nictitans var. nictitans Native CHNIN2

  sensitive partridge pea · Fabaceae 45 counties