Oklahoma

• Adair 40001
  462 taxa Open ↗
• Alfalfa 40003
  443 taxa Open ↗
• Atoka 40005
  275 taxa Open ↗
• Beaver 40007
  382 taxa Open ↗
• Beckham 40009
  298 taxa Open ↗
• Blaine 40011
  437 taxa Open ↗
• Bryan 40013
  935 taxa Open ↗
• Caddo 40015
  574 taxa Open ↗
• Canadian 40017
  444 taxa Open ↗
• Carter 40019
  424 taxa Open ↗

Showing 1,201–1,250 of 2,768.

• 
  Hedeoma drummondii Benth. Native HEDR

  Drummond's false pennyroyal · Lamiaceae 21 counties
• 
  Hedeoma hispida Pursh Native HEHI

  rough false pennyroyal · Lamiaceae 33 counties
• 
  Hedeoma pulegioides (L.) Pers. Native HEPU

  American false pennyroyal · Lamiaceae 5 counties
• 
  Hedysarum boreale Nutt. Native HEBO

  Utah sweetvetch · Fabaceae 3 counties
• 
  Hedysarum boreale Nutt. ssp. boreale Native HEBOB

  Utah sweetvetch · Fabaceae 3 counties
• 
  Hedysarum boreale Nutt. ssp. boreale var. boreale Native HEBOB2

  Utah sweetvetch · Fabaceae 3 counties
• 
  Helenium amarum (Raf.) H. Rock Native HEAM

  sneezeweed · Asteraceae 44 counties
• 
  Helenium amarum (Raf.) H. Rock var. amarum Native HEAMA

  sneezeweed · Asteraceae 1 county
• 
  Helenium amarum (Raf.) H. Rock var. badium (A. Gray ex S. Watson) Waterf. Native HEAMB2

  sneezeweed · Asteraceae 6 counties
• 
  Helenium autumnale L. Native HEAU

  common sneezeweed · Asteraceae 5 counties
• 
  Helenium autumnale L. var. autumnale Native HEAUA

  common sneezeweed · Asteraceae 1 county
• 
  Helenium flexuosum Raf. Native HEFL

  purplehead sneezeweed · Asteraceae 2 counties
• 
  Helenium microcephalum DC. Native HEMI

  smallhead sneezeweed · Asteraceae 7 counties
• 
  Helenium microcephalum DC. var. microcephalum Native HEMIM

  smallhead sneezeweed · Asteraceae 7 counties
• 
  Helianthus annuus L. Native HEAN3

  common sunflower · Asteraceae 30 counties
• 
  Helianthus ciliaris DC. Native HECI

  Texas blueweed · Asteraceae 2 counties
• 
  Helianthus grosseserratus M. Martens Native HEGR4

  sawtooth sunflower · Asteraceae 14 counties
• 
  Helianthus hirsutus Raf. Native HEHI2

  hairy sunflower · Asteraceae 23 counties
• 
  Helianthus maximiliani Schrad. Native HEMA2

  Maximilian sunflower · Asteraceae 16 counties
• 
  Helianthus mollis Lam. Native HEMO2

  ashy sunflower · Asteraceae 23 counties
• 
  Helianthus pauciflorus Nutt. Native HEPA19

  stiff sunflower · Asteraceae 12 counties
• 
  Helianthus pauciflorus Nutt. ssp. pauciflorus Native HEPAP2

  stiff sunflower · Asteraceae 12 counties
• 
  Helianthus petiolaris Nutt. Native HEPE

  prairie sunflower · Asteraceae 34 counties
• 
  Helianthus petiolaris Nutt. ssp. petiolaris Native HEPEP

  prairie sunflower · Asteraceae 34 counties
• 
  Helianthus salicifolius A. Dietr. Native HESA2

  willowleaf sunflower · Asteraceae 4 counties
• 
  Helianthus strumosus L. Native HEST

  paleleaf woodland sunflower · Asteraceae 1 county
• 
  Helianthus tuberosus L. Native HETU

  Jerusalem artichoke · Asteraceae 12 counties
• 
  Heliopsis helianthoides (L.) Sweet Native HEHE5

  smooth oxeye · Asteraceae 2 counties
• 
  Heliopsis helianthoides (L.) Sweet var. scabra (Dunal) Fernald Native HEHES

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

  phlox heliotrope · Boraginaceae 17 counties
• 
  Heliotropium convolvulaceum (Nutt.) A. Gray var. convolvulaceum Native HECOC7

  phlox heliotrope · Boraginaceae 17 counties
• 
  Heliotropium curassavicum L. Native HECU3

  salt heliotrope · Boraginaceae 10 counties
• 
  Heliotropium curassavicum L. var. obovatum DC. Native HECUO2

  seaside heliotrope · Boraginaceae 10 counties
• 
  Heliotropium indicum L. Introduced HEIN

  Indian heliotrope · Boraginaceae 2 counties
• 
  Heliotropium tenellum (Nutt.) Torr. Native HETE3

  pasture heliotrope · Boraginaceae 23 counties
• 
  Hemerocallis fulva (L.) L. Introduced HEFU

  orange daylily · Liliaceae 1 county
• 
  Hesperis matronalis L. Introduced HEMA3

  dames rocket · Brassicaceae 1 county
• 
  Hesperostipa comata (Trin. & Rupr.) Barkworth Native HECO26

  needle and thread · Poaceae 3 counties
• 
  Hesperostipa comata (Trin. & Rupr.) Barkworth ssp. comata Native HECOC8

  needle and thread · Poaceae 3 counties
• 
  Hesperostipa neomexicana (Thurb. ex J.M. Coult.) Barkworth Native HENE5

  New Mexico feathergrass · Poaceae 1 county
• 
  Hesperostipa spartea (Trin.) Barkworth Native HESP11

  porcupinegrass · Poaceae 2 counties
• 
  Heteranthera dubia (Jacq.) MacMill. Native HEDU2

  grassleaf mudplantain · Pontederiaceae 1 county
• 
  Heteranthera limosa (Sw.) Willd. Native HELI2

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

  lemonyellow false goldenaster · Asteraceae 1 county
• 
  Heterotheca canescens (DC.) Shinners Native HECA8

  hoary false goldenaster · Asteraceae 13 counties
• 
  Heterotheca stenophylla (A. Gray) Shinners Native HEST3

  stiffleaf false goldenaster · Asteraceae 22 counties
• 
  Heterotheca stenophylla (A. Gray) Shinners var. angustifolia (Rydb.) Semple Native HESTA

  stiffleaf false goldenaster · Asteraceae 1 county
• 
  Heterotheca stenophylla (A. Gray) Shinners var. stenophylla Native HESTS

  stiffleaf false goldenaster · Asteraceae 22 counties
• 
  Heterotheca subaxillaris (Lam.) Britton & Rusby Native HESU3

  camphorweed · Asteraceae 50 counties
• 
  Heterotheca villosa (Pursh) Shinners Native HEVI4

  hairy false goldenaster · Asteraceae 5 counties