Ohio

• Adams 39001
  1,331 taxa Open ↗
• Allen 39003
  1,038 taxa Open ↗
• Ashland 39005
  998 taxa Open ↗
• Ashtabula 39007
  1,437 taxa Open ↗
• Athens 39009
  1,149 taxa Open ↗
• Auglaize 39011
  958 taxa Open ↗
• Belmont 39013
  945 taxa Open ↗
• Brown 39015
  629 taxa Open ↗
• Butler 39017
  850 taxa Open ↗
• Carroll 39019
  933 taxa Open ↗

Showing 1,551–1,600 of 3,424.

• 
  Hydrophyllum appendiculatum Michx. Native HYAP

  great waterleaf · Hydrophyllaceae 71 counties
• 
  Hydrophyllum canadense L. Native HYCA3

  bluntleaf waterleaf · Hydrophyllaceae 52 counties
• 
  Hydrophyllum macrophyllum Nutt. Native HYMA

  largeleaf waterleaf · Hydrophyllaceae 40 counties
• 
  Hydrophyllum virginianum L. Native HYVI

  eastern waterleaf · Hydrophyllaceae 69 counties
• 
  Hydrophyllum virginianum L. var. virginianum Native HYVIV

  eastern waterleaf · Hydrophyllaceae 69 counties
• 
  Hylotelephium telephioides (Michx.) H. Ohba Native HYTE9

  Allegheny stonecrop · Crassulaceae 5 counties
• 
  Hylotelephium telephium (L.) H. Ohba Introduced HYTE10

  witch's moneybags · Crassulaceae 22 counties
• 
  Hylotelephium telephium (L.) H. Ohba ssp. telephium Introduced HYTET2

  witch's moneybags · Crassulaceae 22 counties
• 
  Hypericum ascyron L. Native HYAS80

  great St. Johnswort · Clusiaceae 29 counties
• 
  Hypericum boreale (Britton) E.P. Bicknell Native HYBO2

  northern St. Johnswort · Clusiaceae 5 counties
• 
  Hypericum canadense L. Native HYCA7

  lesser Canadian St. Johnswort · Clusiaceae 6 counties
• 
  Hypericum drummondii (Grev. & Hook.) Torr. & A. Gray Native HYDR

  nits and lice · Clusiaceae 30 counties
• 
  Hypericum ellipticum Hook. Native HYEL

  pale St. Johnswort · Clusiaceae 3 counties
• 
  Hypericum gentianoides (L.) Britton, Sterns & Poggenb. Native HYGE

  orangegrass · Clusiaceae 25 counties
• 
  Hypericum gymnanthum Engelm. & A. Gray Native HYGY

  claspingleaf St. Johnswort · Clusiaceae 2 counties
• 
  Hypericum hypericoides (L.) Crantz Native HYHY

  St. Andrew's cross · Clusiaceae 19 counties
• 
  Hypericum hypericoides (L.) Crantz ssp. multicaule (Michx. ex Willd.) N. Robson Native HYHYM

  St. Andrew's cross · Clusiaceae 19 counties
• 
  Hypericum kalmianum L. Native HYKA

  Kalm's St. Johnswort · Clusiaceae 5 counties
• 
  Hypericum majus (A. Gray) Britton Native HYMA2

  large St. Johnswort · Clusiaceae 17 counties
• 
  Hypericum mutilum L. Native HYMU

  dwarf St. Johnswort · Clusiaceae 71 counties
• 
  Hypericum perforatum L. Introduced HYPE

  common St. Johnswort · Clusiaceae 72 counties
• 
  Hypericum prolificum L. Native HYPR

  shrubby St. Johnswort · Clusiaceae 60 counties
• 
  Hypericum punctatum Lam. Native HYPU

  spotted St. Johnswort · Clusiaceae 77 counties
• 
  Hypericum sphaerocarpum Michx. Native HYSP2

  roundseed St. Johnswort · Clusiaceae 16 counties
• 
  Hypericum virgatum Lam. Native HYVI6

  sharpleaf St. Johnswort · Clusiaceae 1 county
• 
  Hypochaeris radicata L. Introduced HYRA3

  hairy cat's ear · Asteraceae 18 counties
• 
  Hypoxis hirsuta (L.) Coville Native HYHI2

  common goldstar · Liliaceae 47 counties
• 
  Iberis umbellata L. Introduced IBUM

  globe candytuft · Brassicaceae 2 counties
• 
  Ilex crenata Thunb. Introduced ILCR2

  Japanese holly · Aquifoliaceae 2 counties
• 
  Ilex mucronata (L.) Powell, Savolainen & Andrews Native ILMU

  catberry · Aquifoliaceae 14 counties
• 
  Ilex opaca Aiton Native ILOP

  American holly · Aquifoliaceae 7 counties
• 
  Ilex opaca Aiton var. opaca Native ILOPO

  American holly · Aquifoliaceae 7 counties
• 
  Ilex verticillata (L.) A. Gray Native ILVE

  common winterberry · Aquifoliaceae 69 counties
• 
  Impatiens balsamina L. Introduced IMBA

  spotted snapweed · Balsaminaceae 5 counties
• 
  Impatiens capensis Meerb. Native IMCA

  jewelweed · Balsaminaceae 81 counties
• 
  Impatiens pallida Nutt. Native IMPA

  pale touch-me-not · Balsaminaceae 70 counties
• 
  Impatiens walleriana Hook. f. Introduced IMWA

  buzzy lizzy · Balsaminaceae 1 county
• 
  Inula helenium L. Introduced INHE

  elecampane inula · Asteraceae 50 counties
• 
  Iodanthus pinnatifidus (Michx.) Steud. Native IOPI

  purplerocket · Brassicaceae 37 counties
• 
  Ionactis linariifolius (L.) Greene Native IOLI2

  flaxleaf whitetop aster · Asteraceae 8 counties
• 
  Ipomoea coccinea L. Introduced IPCO3

  redstar · Convolvulaceae 10 counties
• 
  Ipomoea hederacea Jacq. Introduced IPHE

  ivyleaf morning-glory · Convolvulaceae 40 counties
• 
  Ipomoea lacunosa L. Native IPLA

  whitestar · Convolvulaceae 19 counties
• 
  Ipomoea pandurata (L.) G. Mey. Native IPPA

  man of the earth · Convolvulaceae 57 counties
• 
  Ipomoea purpurea (L.) Roth Introduced IPPU2

  tall morning-glory · Convolvulaceae 48 counties
• 
  Ipomopsis rubra (L.) Wherry Native IPRU2

  standing-cypress · Polemoniaceae 4 counties
• 
  Iris brevicaulis Raf. Native IRBR2

  zigzag iris · Iridaceae 11 counties
• 
  Iris cristata Aiton Native IRCR

  dwarf crested iris · Iridaceae 21 counties
• ⚘
  Iris germanica L. Introduced IRGE

  German iris · Iridaceae 2 counties
• 
  Iris pseudacorus L. Introduced IRPS

  paleyellow iris · Iridaceae 1 county