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 1,301–1,350 of 2,768.

• 
  Hymenoxys odorata DC. Native HYOD

  bitter rubberweed · Asteraceae 7 counties
• 
  Hypericum drummondii (Grev. & Hook.) Torr. & A. Gray Native HYDR

  nits and lice · Clusiaceae 16 counties
• 
  Hypericum hypericoides (L.) Crantz Native HYHY

  St. Andrew's cross · Clusiaceae 24 counties
• 
  Hypericum hypericoides (L.) Crantz ssp. multicaule (Michx. ex Willd.) N. Robson Native HYHYM

  St. Andrew's cross · Clusiaceae 23 counties
• 
  Hypericum mutilum L. Native HYMU

  dwarf St. Johnswort · Clusiaceae 14 counties
• 
  Hypericum perforatum L. Introduced HYPE

  common St. Johnswort · Clusiaceae 4 counties
• 
  Hypericum prolificum L. Native HYPR

  shrubby St. Johnswort · Clusiaceae 1 county
• 
  Hypericum pseudomaculatum Bush Native HYPS

  false spotted St. Johnswort · Clusiaceae 1 county
• 
  Hypericum punctatum Lam. Native HYPU

  spotted St. Johnswort · Clusiaceae 19 counties
• 
  Hypericum sphaerocarpum Michx. Native HYSP2

  roundseed St. Johnswort · Clusiaceae 12 counties
• 
  Hypochaeris radicata L. Introduced HYRA3

  hairy cat's ear · Asteraceae 1 county
• 
  Hypoxis hirsuta (L.) Coville Native HYHI2

  common goldstar · Liliaceae 31 counties
• 
  Ibervillea lindheimeri (A. Gray) Greene Native IBLI

  Lindheimer's globeberry · Cucurbitaceae 4 counties
• 
  Ilex decidua Walter Native ILDE

  possumhaw · Aquifoliaceae 19 counties
• 
  Impatiens capensis Meerb. Native IMCA

  jewelweed · Balsaminaceae 11 counties
• 
  Impatiens pallida Nutt. Native IMPA

  pale touch-me-not · Balsaminaceae 4 counties
• 
  Indigofera miniata Ortega Native INMI

  coastal indigo · Fabaceae 32 counties
• 
  Iodanthus pinnatifidus (Michx.) Steud. Native IOPI

  purplerocket · Brassicaceae 8 counties
• 
  Ionactis linariifolius (L.) Greene Native IOLI2

  flaxleaf whitetop aster · Asteraceae 1 county
• 
  Ipomoea coccinea L. Introduced IPCO3

  redstar · Convolvulaceae 4 counties
• 
  Ipomoea hederacea Jacq. Introduced IPHE

  ivyleaf morning-glory · Convolvulaceae 17 counties
• 
  Ipomoea lacunosa L. Native IPLA

  whitestar · Convolvulaceae 10 counties
• 
  Ipomoea leptophylla Torr. Native IPLE

  bush morning-glory · Convolvulaceae 20 counties
• 
  Ipomoea pandurata (L.) G. Mey. Native IPPA

  man of the earth · Convolvulaceae 28 counties
• 
  Ipomoea purpurea (L.) Roth Introduced IPPU2

  tall morning-glory · Convolvulaceae 10 counties
• 
  Ipomoea shumardiana (Torr.) Shinners Native IPSH

  narrowleaf morning-glory · Convolvulaceae 9 counties
• 
  Ipomopsis laxiflora (J.M. Coult.) V.E. Grant Native IPLA2

  iron ipomopsis · Polemoniaceae 1 county
• 
  Ipomopsis longiflora (Torr.) V.E. Grant Native IPLO2

  flaxflowered ipomopsis · Polemoniaceae 9 counties
• 
  Ipomopsis longiflora (Torr.) V.E. Grant ssp. longiflora Native IPLOL

  flaxflowered ipomopsis · Polemoniaceae 9 counties
• 
  Ipomopsis rubra (L.) Wherry Native IPRU2

  standing-cypress · Polemoniaceae 3 counties
• 
  Iresine rhizomatosa Standl. Native IRRH

  Juda's bush · Amaranthaceae 22 counties
• 
  Iris brevicaulis Raf. Native IRBR2

  zigzag iris · Iridaceae 1 county
• 
  Iris cristata Aiton Native IRCR

  dwarf crested iris · Iridaceae 1 county
• 
  Iris pseudacorus L. Introduced IRPS

  paleyellow iris · Iridaceae 1 county
• 
  Iris virginica L. Native IRVI

  Virginia iris · Iridaceae 3 counties
• 
  Iris virginica L. var. shrevei (Small) E.S. Anderson Native IRVIS

  Shreve's iris · Iridaceae 3 counties
• 
  Isoetes butleri Engelm. Native ISBU

  limestone quillwort · Isoetaceae 2 counties
• 
  Isoetes melanopoda Gay & Durieu ex Durieu Native ISME

  blackfoot quillwort · Isoetaceae 3 counties
• 
  Isolepis carinata Hook. & Arn. ex Torr. Native ISCA6

  keeled bulrush · Cyperaceae 2 counties
• 
  Isotria verticillata Raf. Native ISVE

  large whorled pogonia · Orchidaceae 2 counties
• 
  Iva angustifolia Nutt. ex DC. Native IVAN

  narrowleaf marsh elder · Asteraceae 1 county
• 
  Iva annua L. Native IVAN2

  annual marsh elder · Asteraceae 24 counties
• 
  Iva annua L. var. annua Native IVANA

  annual marsh elder · Asteraceae 24 counties
• 
  Juglans major (Torr.) A. Heller Native JUMA

  Arizona walnut · Juglandaceae 2 counties
• 
  Juglans microcarpa Berl. Native JUMI

  little walnut · Juglandaceae 18 counties
• 
  Juglans microcarpa Berl. var. microcarpa Native JUMIM

  little walnut · Juglandaceae 8 counties
• 
  Juglans nigra L. Native JUNI

  black walnut · Juglandaceae 31 counties
• 
  Juncus acuminatus Michx. Native JUAC

  tapertip rush · Juncaceae 16 counties
• 
  Juncus arcticus Willd. Both JUAR2

  arctic rush · Juncaceae 1 county
• 
  Juncus arcticus Willd. ssp. littoralis (Engelm.) Hultén Native JUARL

  mountain rush · Juncaceae 1 county