York County

Showing 1,201–1,250 of 1,545.

• 
  Rumex crispus L. ssp. crispus Introduced RUCRC

  curly dock · Polygonaceae
• 
  Rumex longifolius DC. Introduced RULO2

  dooryard dock · Polygonaceae
• 
  Rumex maritimus L. Native RUMA4

  golden dock · Polygonaceae
• 
  Rumex obtusifolius L. Introduced RUOB

  bitter dock · Polygonaceae
• 
  Rumex orbiculatus A. Gray Native RUOR2

  greater water dock · Polygonaceae
• 
  Rumex pallidus Bigelow Native RUPA4

  seaside dock · Polygonaceae
• 
  Rumex salicifolius Weinm. Native RUSA

  willow dock · Polygonaceae
• 
  Rumex salicifolius Weinm. var. mexicanus (Meisn.) C.L. Hitchc. Native RUSAM

  Mexican dock · Polygonaceae
• 
  Ruppia maritima L. Native RUMA5

  widgeongrass · Ruppiaceae
• 
  Sagina nodosa (L.) Fenzl Both SANO

  knotted pearlwort · Caryophyllaceae
• 
  Sagina procumbens L. Introduced SAPR

  birdeye pearlwort · Caryophyllaceae
• 
  Sagittaria calycina Engelm. Native SACA21

  hooded arrowhead · Alismataceae
• 
  Sagittaria calycina Engelm. var. spongiosa Native SACAS

  hooded arrowhead · Alismataceae
• 
  Sagittaria graminea Michx. Native SAGR

  grassy arrowhead · Alismataceae
• 
  Sagittaria graminea Michx. var. graminea Native SAGRG

  grassy arrowhead · Alismataceae
• 
  Sagittaria latifolia Willd. Native SALA2

  broadleaf arrowhead · Alismataceae
• 
  Salicornia bigelovii Torr. Native SABI

  dwarf saltwort · Chenopodiaceae
• 
  Salix alba L. Introduced SAAL2

  white willow · Salicaceae
• 
  Salix bebbiana Sarg. Native SABE2

  Bebb willow · Salicaceae
• 
  Salix cinerea L. Introduced SACI

  large gray willow · Salicaceae
• 
  Salix discolor Muhl. Native SADI

  pussy willow · Salicaceae
• 
  Salix eriocephala Michx. Native SAER

  Missouri River willow · Salicaceae
• ⚘
  Salix fragilis L. Introduced SAFR

  crack willow · Salicaceae
• 
  Salix humilis Marshall Native SAHU2

  prairie willow · Salicaceae
• 
  Salix lucida Muhl. Native SALU

  shining willow · Salicaceae
• 
  Salix lucida Muhl. ssp. lucida Native SALUL2

  shining willow · Salicaceae
• 
  Salix nigra Marshall Native SANI

  black willow · Salicaceae
• 
  Salix pentandra L. Introduced SAPE4

  laurel willow · Salicaceae
• 
  Salix petiolaris Sm. Native SAPE5

  meadow willow · Salicaceae
• 
  Salix sericea Marshall Native SASE

  silky willow · Salicaceae
• 
  Salsola kali L. Introduced SAKA

  Russian thistle · Chenopodiaceae
• 
  Salsola kali L. ssp. kali Introduced SAKAK

  Russian thistle · Chenopodiaceae
• 
  Sambucus nigra L. Both SANI4

  black elderberry · Caprifoliaceae
• 
  Sambucus nigra L. ssp. canadensis (L.) R. Bolli Native SANIC4

  American black elderberry · Caprifoliaceae
• 
  Sambucus racemosa L. Native SARA2

  red elderberry · Caprifoliaceae
• 
  Sambucus racemosa L. var. racemosa Native SARAR3

  red elderberry · Caprifoliaceae
• 
  Samolus valerandi L. Both SAVA3

  seaside brookweed · Primulaceae
• 
  Samolus valerandi L. ssp. parviflorus (Raf.) Hultén Native SAVAP

  seaside brookweed · Primulaceae
• 
  Sanguinaria canadensis L. Native SACA13

  bloodroot · Papaveraceae
• 
  Sanguisorba canadensis L. Native SACA14

  Canadian burnet · Rosaceae
• 
  Sanguisorba officinalis L. Native SAOF3

  great burnet · Rosaceae
• 
  Sanicula marilandica L. Native SAMA2

  Maryland sanicle · Apiaceae
• 
  Saponaria officinalis L. Introduced SAOF4

  bouncingbet · Caryophyllaceae
• 
  Sarracenia purpurea L. Native SAPU4

  purple pitcherplant · Sarraceniaceae
• 
  Sarracenia purpurea L. ssp. purpurea var. purpurea Native SAPUP6

  northern purple pitcherplant · Sarraceniaceae
• 
  Sassafras albidum (Nutt.) Nees Native SAAL5

  sassafras · Lauraceae
• 
  Saxifraga pensylvanica L. Native SAPE8

  eastern swamp saxifrage · Saxifragaceae
• 
  Saxifraga virginiensis Michx. Native SAVI5

  early saxifrage · Saxifragaceae
• 
  Saxifraga virginiensis Michx. var. virginiensis Native SAVIV

  early saxifrage · Saxifragaceae
• 
  Schedonorus pratensis (Huds.) P. Beauv. Introduced SCPR4

  meadow fescue · Poaceae