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 1,101–1,150 of 2,679 (native).

• 
  Helenium autumnale L. Native HEAU

  common sneezeweed · Asteraceae 25 counties
• 
  Helenium autumnale L. var. autumnale Native HEAUA

  common sneezeweed · Asteraceae 25 counties
• 
  Helenium campestre Small Native HECA13

  oldfield sneezeweed · Asteraceae 19 counties
• 
  Helenium flexuosum Raf. Native HEFL

  purplehead sneezeweed · Asteraceae 58 counties
• 
  Helianthemum bicknellii Fernald Native HEBI2

  hoary frostweed · Cistaceae 1 county
• 
  Helianthemum carolinianum (Walter) Michx. Native HECA4

  Carolina frostweed · Cistaceae 6 counties
• 
  Helianthemum georgianum Chapm. Native HEGE

  Georgia frostweed · Cistaceae 3 counties
• 
  Helianthemum rosmarinifolium Pursh Native HERO2

  rosemary frostweed · Cistaceae 3 counties
• 
  Helianthus angustifolius L. Native HEAN2

  swamp sunflower · Asteraceae 48 counties
• 
  Helianthus annuus L. Native HEAN3

  common sunflower · Asteraceae 27 counties
• 
  Helianthus divaricatus L. Native HEDI2

  woodland sunflower · Asteraceae 38 counties
• 
  Helianthus grosseserratus M. Martens Native HEGR4

  sawtooth sunflower · Asteraceae 11 counties
• 
  Helianthus hirsutus Raf. Native HEHI2

  hairy sunflower · Asteraceae 49 counties
• 
  Helianthus maximiliani Schrad. Native HEMA2

  Maximilian sunflower · Asteraceae 9 counties
• 
  Helianthus microcephalus Torr. & A. Gray Native HEMI3

  small woodland sunflower · Asteraceae 4 counties
• 
  Helianthus mollis Lam. Native HEMO2

  ashy sunflower · Asteraceae 32 counties
• 
  Helianthus occidentalis Riddell Native HEOC2

  fewleaf sunflower · Asteraceae 4 counties
• 
  Helianthus occidentalis Riddell ssp. occidentalis Native HEOCO

  fewleaf sunflower · Asteraceae 3 counties
• 
  Helianthus occidentalis Riddell ssp. plantagineus (Torr. & A. Gray) Shinners Native HEOCP

  fewleaf sunflower · Asteraceae 1 county
• 
  Helianthus pauciflorus Nutt. Native HEPA19

  stiff sunflower · Asteraceae 4 counties
• 
  Helianthus pauciflorus Nutt. ssp. pauciflorus Native HEPAP2

  stiff sunflower · Asteraceae 4 counties
• 
  Helianthus petiolaris Nutt. Native HEPE

  prairie sunflower · Asteraceae 2 counties
• 
  Helianthus petiolaris Nutt. ssp. petiolaris Native HEPEP

  prairie sunflower · Asteraceae 2 counties
• 
  Helianthus silphioides Nutt. Native HESI

  rosinweed sunflower · Asteraceae 34 counties
• 
  Helianthus simulans E.E. Watson Native HESI2

  muck sunflower · Asteraceae 3 counties
• 
  Helianthus strumosus L. Native HEST

  paleleaf woodland sunflower · Asteraceae 23 counties
• 
  Helianthus tuberosus L. Native HETU

  Jerusalem artichoke · Asteraceae 23 counties
• 
  Heliopsis helianthoides (L.) Sweet Native HEHE5

  smooth oxeye · Asteraceae 49 counties
• 
  Heliopsis helianthoides (L.) Sweet var. gracilis (Nutt.) Gandhi & R.D. Thomas Native HEHEG

  smooth oxeye · Asteraceae 1 county
• 
  Heliopsis helianthoides (L.) Sweet var. helianthoides Native HEHEH

  smooth oxeye · Asteraceae 1 county
• 
  Heliotropium convolvulaceum (Nutt.) A. Gray Native HECO5

  phlox heliotrope · Boraginaceae 3 counties
• 
  Heliotropium convolvulaceum (Nutt.) A. Gray var. convolvulaceum Native HECOC7

  phlox heliotrope · Boraginaceae 3 counties
• 
  Heliotropium curassavicum L. Native HECU3

  salt heliotrope · Boraginaceae 2 counties
• 
  Heliotropium curassavicum L. var. curassavicum Native HECUC2

  salt heliotrope · Boraginaceae 2 counties
• 
  Heliotropium procumbens Mill. Native HEPR3

  fourspike heliotrope · Boraginaceae 3 counties
• 
  Heliotropium procumbens Mill. var. procumbens Native HEPRP2

  fourspike heliotrope · Boraginaceae 3 counties
• 
  Heliotropium tenellum (Nutt.) Torr. Native HETE3

  pasture heliotrope · Boraginaceae 19 counties
• 
  Hepatica nobilis Schreb. Native HENO2

  hepatica · Ranunculaceae 11 counties
• 
  Hepatica nobilis Schreb. var. acuta (Pursh) Steyerm. Native HENOA

  sharplobe hepatica · Ranunculaceae 2 counties
• 
  Hepatica nobilis Schreb. var. obtusa (Pursh) Steyerm. Native HENOO

  roundlobe hepatica · Ranunculaceae 11 counties
• 
  Heteranthera dubia (Jacq.) MacMill. Native HEDU2

  grassleaf mudplantain · Pontederiaceae 10 counties
• 
  Heteranthera limosa (Sw.) Willd. Native HELI2

  blue mudplantain · Pontederiaceae 17 counties
• 
  Heteranthera reniformis Ruiz & Pav. Native HERE

  kidneyleaf mudplantain · Pontederiaceae 11 counties
• 
  Heterotheca camporum (Greene) Shinners Native HECA16

  lemonyellow false goldenaster · Asteraceae 9 counties
• 
  Heterotheca subaxillaris (Lam.) Britton & Rusby Native HESU3

  camphorweed · Asteraceae 46 counties
• 
  Heuchera americana L. Native HEAM6

  American alumroot · Saxifragaceae 37 counties
• 
  Heuchera americana L. var. americana Native HEAMA2

  American alumroot · Saxifragaceae 16 counties
• 
  Heuchera americana L. var. hirsuticaulis (Wheelock) Rosend., Butters & Lakela Native HEAMH

  American alumroot · Saxifragaceae 30 counties
• 
  Heuchera parviflora Bartlett Native HEPA10

  littleflower alumroot · Saxifragaceae 8 counties
• 
  Heuchera parviflora Bartlett var. puberula (Mack. & Bush) E.F. Wells Native HEPAP5

  littleflower alumroot · Saxifragaceae 8 counties