Arkansas

• Arkansas 05001
  816 taxa Open ↗
• Ashley 05003
  1,236 taxa Open ↗
• Baxter 05005
  1,025 taxa Open ↗
• Benton 05007
  1,372 taxa Open ↗
• Boone 05009
  697 taxa Open ↗
• Bradley 05011
  1,145 taxa Open ↗
• Calhoun 05013
  573 taxa Open ↗
• Carroll 05015
  1,039 taxa Open ↗
• Chicot 05017
  440 taxa Open ↗
• Clark 05019
  896 taxa Open ↗

Showing 2,451–2,500 of 3,277.

• 
  Ranunculus sceleratus L. Native RASC3

  cursed buttercup · Ranunculaceae 16 counties
• 
  Ranunculus sceleratus L. var. sceleratus Native RASCS

  cursed buttercup · Ranunculaceae 16 counties
• 
  Raphanus raphanistrum L. Introduced RARA2

  wild radish · Brassicaceae 1 county
• 
  Ratibida columnifera (Nutt.) Wooton & Standl. Native RACO3

  upright prairie coneflower · Asteraceae 13 counties
• 
  Ratibida pinnata (Vent.) Barnhart Native RAPI

  pinnate prairie coneflower · Asteraceae 20 counties
• 
  Rhamnus lanceolata Pursh Native RHLA

  lanceleaf buckthorn · Rhamnaceae 8 counties
• 
  Rhamnus lanceolata Pursh ssp. glabrata (Gleason) Kartesz & Gandhi Native RHLAG2

  lanceleaf buckthorn · Rhamnaceae 8 counties
• 
  Rhexia mariana L. Native RHMA

  Maryland meadowbeauty · Melastomataceae 50 counties
• 
  Rhexia mariana L. var. interior (Pennell) Kral & Bostick Native RHMAI

  Maryland meadowbeauty · Melastomataceae 21 counties
• 
  Rhexia mariana L. var. mariana Native RHMAM2

  Maryland meadowbeauty · Melastomataceae 47 counties
• 
  Rhexia virginica L. Native RHVI

  handsome Harry · Melastomataceae 14 counties
• 
  Rhododendron canescens (Michx.) Sweet Native RHCA7

  mountain azalea · Ericaceae 12 counties
• 
  Rhododendron oblongifolium (Small) Millais Native RHOB

  Texas azalea · Ericaceae 1 county
• 
  Rhododendron prinophyllum (Small) Millais Native RHPR

  early azalea · Ericaceae 24 counties
• 
  Rhododendron viscosum (L.) Torr. Native RHVI2

  swamp azalea · Ericaceae 29 counties
• 
  Rhus aromatica Aiton Native RHAR4

  fragrant sumac · Anacardiaceae 48 counties
• 
  Rhus aromatica Aiton var. aromatica Native RHARA2

  fragrant sumac · Anacardiaceae 43 counties
• 
  Rhus aromatica Aiton var. serotina (Greene) Rehder Native RHARS

  fragrant sumac · Anacardiaceae 23 counties
• 
  Rhus copallinum L. Native RHCO

  winged sumac · Anacardiaceae 68 counties
• 
  Rhus copallinum L. var. latifolia Engl. Native RHCOL2

  winged sumac · Anacardiaceae 68 counties
• 
  Rhus glabra L. Native RHGL

  smooth sumac · Anacardiaceae 68 counties
• 
  Rhus trilobata Nutt. Native RHTR

  skunkbush sumac · Anacardiaceae 1 county
• 
  Rhus trilobata Nutt. var. trilobata Native RHTRT

  skunkbush sumac · Anacardiaceae 1 county
• 
  Rhynchosia difformis (Elliott) DC. Native RHDI2

  doubleform snoutbean · Fabaceae 1 county
• 
  Rhynchosia latifolia Nutt. ex Torr. & A. Gray Native RHLA5

  prairie snoutbean · Fabaceae 50 counties
• 
  Rhynchosia tomentosa (L.) Hook. & Arn. Native RHTO3

  twining snoutbean · Fabaceae 1 county
• 
  Rhynchosia tomentosa (L.) Hook. & Arn. var. tomentosa Native RHTOT

  twining snoutbean · Fabaceae 1 county
• 
  Rhynchospora caduca Elliott Native RHCA9

  anglestem beaksedge · Cyperaceae 6 counties
• 
  Rhynchospora capillacea Torr. Native RHCA11

  needle beaksedge · Cyperaceae 4 counties
• 
  Rhynchospora capitellata (Michx.) Vahl Native RHCA12

  brownish beaksedge · Cyperaceae 19 counties
• 
  Rhynchospora colorata (L.) H. Pfeiffer Native RHCO7

  starrush whitetop · Cyperaceae 2 counties
• 
  Rhynchospora corniculata (Lam.) A. Gray Native RHCO2

  shortbristle horned beaksedge · Cyperaceae 36 counties
• 
  Rhynchospora globularis (Chapm.) Small Native RHGL2

  globe beaksedge · Cyperaceae 2 counties
• 
  Rhynchospora globularis (Chapm.) Small var. globularis Native RHGLG

  globe beaksedge · Cyperaceae 2 counties
• 
  Rhynchospora glomerata (L.) Vahl Native RHGL3

  clustered beaksedge · Cyperaceae 20 counties
• 
  Rhynchospora gracilenta A. Gray Native RHGR

  slender beaksedge · Cyperaceae 2 counties
• 
  Rhynchospora harveyi W. Boott Native RHHA

  Harvey's beaksedge · Cyperaceae 10 counties
• 
  Rhynchospora harveyi W. Boott var. harveyi Native RHHAH

  Harvey's beaksedge · Cyperaceae 10 counties
• 
  Rhynchospora inexpansa (Michx.) Vahl Native RHIN4

  nodding beaksedge · Cyperaceae 12 counties
• 
  Rhynchospora macrostachya Torr. ex A. Gray Native RHMA6

  tall horned beaksedge · Cyperaceae 4 counties
• 
  Rhynchospora microcarpa Baldw. ex A. Gray Native RHMI7

  southern beaksedge · Cyperaceae 1 county
• 
  Rhynchospora plumosa Elliott Native RHPL3

  plumed beaksedge · Cyperaceae 1 county
• 
  Rhynchospora rariflora (Michx.) Elliott Native RHRA2

  fewflower beaksedge · Cyperaceae 1 county
• 
  Rhynchospora recognita (Gale) Kral Native RHRE8

  globe beaksedge · Cyperaceae 21 counties
• 
  Ribes aureum Pursh Native RIAU

  golden currant · Grossulariaceae 10 counties
• 
  Ribes aureum Pursh var. villosum DC. Native RIAUV

  golden currant · Grossulariaceae 10 counties
• 
  Ribes curvatum Small Native RICU

  granite gooseberry · Grossulariaceae 7 counties
• 
  Ribes cynosbati L. Native RICY

  eastern prickly gooseberry · Grossulariaceae 4 counties
• 
  Ribes missouriense Nutt. Native RIMI

  Missouri gooseberry · Grossulariaceae 9 counties
• 
  Richardia scabra L. Native RISC

  rough Mexican clover · Rubiaceae 5 counties