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 1,151–1,200 of 2,679 (native).

• 
  Heuchera villosa Michx. Native HEVI2

  hairy alumroot · Saxifragaceae 9 counties
• 
  Heuchera villosa Michx. var. arkansana (Rydb.) E.B. Sm. Native HEVIA

  Arkansas alumroot · Saxifragaceae 9 counties
• 
  Hexalectris spicata (Walter) Barnhart Native HESP3

  spiked crested coralroot · Orchidaceae 5 counties
• 
  Hexalectris spicata (Walter) Barnhart var. spicata Native HESPS3

  spiked crested coralroot · Orchidaceae 5 counties
• 
  Hibiscus laevis All. Native HILA2

  halberdleaf rosemallow · Malvaceae 35 counties
• ⚘
  Hibiscus lasiocarpos Cav. Native HILA6

  rosemallow · Malvaceae 1 county
• 
  Hibiscus moscheutos L. Native HIMO

  crimsoneyed rosemallow · Malvaceae 2 counties
• 
  Hieracium gronovii L. Native HIGR3

  queendevil · Asteraceae 50 counties
• 
  Hieracium longipilum Torr. Native HILO2

  hairy hawkweed · Asteraceae 14 counties
• 
  Hieracium scabrum Michx. Native HISC

  rough hawkweed · Asteraceae 3 counties
• 
  Hieracium scabrum Michx. var. intonsum Fernald & H. St. John Native HISCI

  rough hawkweed · Asteraceae 1 county
• 
  Hieracium scabrum Michx. var. scabrum Native HISCS

  rough hawkweed · Asteraceae 2 counties
• 
  Hordeum jubatum L. Native HOJU

  foxtail barley · Poaceae 3 counties
• 
  Hordeum jubatum L. ssp. jubatum Native HOJUJ

  foxtail barley · Poaceae 3 counties
• 
  Hordeum pusillum Nutt. Native HOPU

  little barley · Poaceae 53 counties
• 
  Hottonia inflata Elliott Native HOIN

  American featherfoil · Primulaceae 12 counties
• 
  Houstonia caerulea L. Native HOCA4

  azure bluet · Rubiaceae 23 counties
• 
  Houstonia longifolia Gaertn. Native HOLO

  longleaf summer bluet · Rubiaceae 42 counties
• 
  Houstonia micrantha (Shinners) Terrell Native HOMI4

  southern bluet · Rubiaceae 32 counties
• 
  Houstonia ouachitana (E.B. Sm.) Terrell Native HOOU

  Ouachita bluet · Rubiaceae 5 counties
• 
  Houstonia purpurea L. Native HOPU2

  Venus' pride · Rubiaceae 44 counties
• 
  Houstonia purpurea L. var. purpurea Native HOPUP3

  Venus' pride · Rubiaceae 44 counties
• 
  Houstonia pusilla Schoepf Native HOPU3

  tiny bluet · Rubiaceae 69 counties
• 
  Houstonia rosea (Raf.) Terrell Native HORO

  rose bluet · Rubiaceae 12 counties
• 
  Humulus lupulus L. var. pubescens E. Small Native HULUP

  common hop · Cannabaceae 4 counties
• 
  Huperzia lucidula (Michx.) Trevis. Native HULU2

  shining clubmoss · Lycopodiaceae 3 counties
• 
  Hybanthus concolor (T.F. Forst.) Spreng. Native HYCO6

  eastern greenviolet · Violaceae 26 counties
• 
  Hydrangea arborescens L. Native HYAR

  wild hydrangea · Hydrangeaceae 42 counties
• 
  Hydrastis canadensis L. Native HYCA

  goldenseal · Ranunculaceae 12 counties
• 
  Hydrocotyle americana L. Native HYAM

  American marshpennywort · Apiaceae 1 county
• 
  Hydrocotyle prolifera Kellogg Native HYPR10

  whorled marshpennywort · Apiaceae 5 counties
• 
  Hydrocotyle ranunculoides L. f. Native HYRA

  floating marshpennywort · Apiaceae 12 counties
• 
  Hydrocotyle umbellata L. Native HYUM

  manyflower marshpennywort · Apiaceae 7 counties
• 
  Hydrocotyle verticillata Thunb. Native HYVE2

  whorled marshpennywort · Apiaceae 15 counties
• 
  Hydrocotyle verticillata Thunb. var. verticillata Native HYVEV

  whorled marshpennywort · Apiaceae 14 counties
• 
  Hydrolea ovata Nutt. ex Choisy Native HYOV

  ovate false fiddleleaf · Hydrophyllaceae 42 counties
• 
  Hydrolea uniflora Raf. Native HYUN

  oneflower false fiddleleaf · Hydrophyllaceae 29 counties
• 
  Hydrophyllum appendiculatum Michx. Native HYAP

  great waterleaf · Hydrophyllaceae 9 counties
• 
  Hydrophyllum macrophyllum Nutt. Native HYMA

  largeleaf waterleaf · Hydrophyllaceae 5 counties
• 
  Hydrophyllum virginianum L. Native HYVI

  eastern waterleaf · Hydrophyllaceae 8 counties
• 
  Hydrophyllum virginianum L. var. virginianum Native HYVIV

  eastern waterleaf · Hydrophyllaceae 8 counties
• 
  Hymenocallis liriosme (Raf.) Shinners Native HYLI

  spring spiderlily · Liliaceae 7 counties
• 
  Hymenocallis occidentalis (Leconte) Kunth Native HYOC2

  northern spiderlily · Liliaceae 3 counties
• 
  Hymenocallis occidentalis (Leconte) Kunth var. occidentalis Native HYOCO

  northern spiderlily · Liliaceae 3 counties
• 
  Hymenopappus artemisiifolius DC. Native HYAR3

  oldplainsman · Asteraceae 3 counties
• 
  Hymenopappus artemisiifolius DC. var. artemisiifolius Native HYARA

  oldplainsman · Asteraceae 3 counties
• 
  Hymenopappus scabiosaeus L'Hér. Native HYSC

  Carolina woollywhite · Asteraceae 10 counties
• 
  Hymenopappus scabiosaeus L'Hér. var. corymbosus (Torr. & A. Gray) B.L. Turner Native HYSCC

  Carolina woollywhite · Asteraceae 4 counties
• 
  Hymenopappus scabiosaeus L'Hér. var. scabiosaeus Native HYSCS

  Carolina woollywhite · Asteraceae 9 counties
• 
  Hypericum crux-andreae (L.) Crantz Native HYCR3

  St. Peterswort · Clusiaceae 19 counties