Washington

• Adams 53001
  571 taxa Open ↗
• Asotin 53003
  959 taxa Open ↗
• Benton 53005
  796 taxa Open ↗
• Chelan 53007
  1,875 taxa Open ↗
• Clallam 53009
  1,390 taxa Open ↗
• Clark 53011
  658 taxa Open ↗
• Columbia 53013
  1,183 taxa Open ↗
• Cowlitz 53015
  798 taxa Open ↗
• Douglas 53017
  679 taxa Open ↗
• Ferry 53019
  994 taxa Open ↗

Showing 2,001–2,050 of 4,423.

• 
  Hieracium scouleri Hook. var. nudicaule (A. Gray) Cronquist Native HISCN

  Scouler's woollyweed · Asteraceae 1 county
• 
  Hieracium scouleri Hook. var. scouleri Native HISCS2

  Scouler's woollyweed · Asteraceae 11 counties
• 
  Hieracium umbellatum L. Native HIUM

  narrowleaf hawkweed · Asteraceae 12 counties
• 
  Hieracium ×floribundum Wimm. & Grab. (pro sp.) [caespitosum × lactucella] Introduced HIFL3

  hawkweed · Asteraceae 6 counties
• 
  Hierochloe hirta (Schrank) Borbás Native HIHI

  northern sweetgrass · Poaceae 13 counties
• 
  Hierochloe hirta (Schrank) Borbás ssp. arctica (J. Presl) G. Weim. Native HIHIA

  northern sweetgrass · Poaceae 13 counties
• 
  Hierochloe occidentalis Buckley Native HIOC

  California sweetgrass · Poaceae 2 counties
• 
  Hippuris montana Ledeb. Native HIMO2

  mountain mare's-tail · Hippuridaceae 8 counties
• 
  Hippuris vulgaris L. Native HIVU2

  common mare's-tail · Hippuridaceae 13 counties
• 
  Holcus lanatus L. Introduced HOLA

  common velvetgrass · Poaceae 24 counties
• 
  Holcus mollis L. Introduced HOMO

  creeping velvetgrass · Poaceae 4 counties
• 
  Holodiscus discolor (Pursh) Maxim. Native HODI

  oceanspray · Rosaceae 33 counties
• 
  Holosteum umbellatum L. Introduced HOUM

  jagged chickweed · Caryophyllaceae 16 counties
• 
  Honckenya peploides (L.) Ehrh. Native HOPE

  seaside sandplant · Caryophyllaceae 9 counties
• 
  Honckenya peploides (L.) Ehrh. ssp. major (Hook.) Hultén Native HOPEM2

  seaside sandplant · Caryophyllaceae 9 counties
• 
  Hordeum brachyantherum Nevski Native HOBR2

  meadow barley · Poaceae 28 counties
• 
  Hordeum brachyantherum Nevski ssp. brachyantherum Native HOBRB2

  meadow barley · Poaceae 27 counties
• 
  Hordeum depressum (Scribn. & J.G. Sm.) Rydb. Native HODE2

  dwarf barley · Poaceae 3 counties
• 
  Hordeum jubatum L. Native HOJU

  foxtail barley · Poaceae 25 counties
• 
  Hordeum jubatum L. ssp. jubatum Native HOJUJ

  foxtail barley · Poaceae 25 counties
• 
  Hordeum marinum Huds. Introduced HOMA2

  seaside barley · Poaceae 8 counties
• 
  Hordeum marinum Huds. ssp. gussoneanum (Parl.) Thell. Introduced HOMAG

  Mediterranean barley · Poaceae 8 counties
• 
  Hordeum murinum L. Introduced HOMU

  mouse barley · Poaceae 21 counties
• 
  Hordeum murinum L. ssp. glaucum (Steud.) Tzvelev Introduced HOMUG

  smooth barley · Poaceae 4 counties
• 
  Hordeum murinum L. ssp. leporinum (Link) Arcang. Introduced HOMUL

  hare barley · Poaceae 16 counties
• 
  Hordeum murinum L. ssp. murinum Introduced HOMUM

  wall barley · Poaceae 1 county
• 
  Hordeum vulgare L. Introduced HOVU

  common barley · Poaceae 11 counties
• 
  Horkelia fusca Lindl. Native HOFU

  pinewoods horkelia · Rosaceae 3 counties
• 
  Horkelia fusca Lindl. ssp. fusca Native HOFUF2

  pinewoods horkelia · Rosaceae 2 counties
• 
  Hornungia procumbens (L.) Hayek Native HOPR4

  prostrate hutchinsia · Brassicaceae 11 counties
• 
  Howellia aquatilis A. Gray Native HOAQ

  water howellia · Campanulaceae 5 counties
• 
  Hulsea nana A. Gray Native HUNA

  dwarf alpinegold · Asteraceae 3 counties
• 
  Humulus lupulus L. Both HULU

  common hop · Cannabaceae 5 counties
• 
  Humulus lupulus L. var. neomexicanus A. Nelson & Cockerell Native HULUN

  common hop · Cannabaceae 5 counties
• 
  Huperzia haleakalae (Brack.) Holub Native HUHA

  Pacific clubmoss · Lycopodiaceae 7 counties
• 
  Huperzia miyoshiana (Makino) Ching Native HUMI

  Miyoshi's clubmoss · Lycopodiaceae 9 counties
• 
  Huperzia occidentalis (Clute) Kartesz & Gandhi Native HUOC

  western clubmoss · Lycopodiaceae 5 counties
• 
  Hydrilla verticillata (L. f.) Royle Introduced HYVE3

  waterthyme · Hydrocharitaceae 1 county
• 
  Hydrocotyle ranunculoides L. f. Native HYRA

  floating marshpennywort · Apiaceae 8 counties
• 
  Hydrophyllum capitatum Douglas ex Benth. Native HYCA4

  ballhead waterleaf · Hydrophyllaceae 16 counties
• 
  Hydrophyllum capitatum Douglas ex Benth. var. capitatum Native HYCAC

  ballhead waterleaf · Hydrophyllaceae 13 counties
• 
  Hydrophyllum capitatum Douglas ex Benth. var. thompsonii (M. Peck) Constance Native HYCAT

  Thompson's waterleaf · Hydrophyllaceae 3 counties
• 
  Hydrophyllum fendleri (A. Gray) A. Heller Native HYFE

  Fendler's waterleaf · Hydrophyllaceae 18 counties
• 
  Hydrophyllum fendleri (A. Gray) A. Heller var. albifrons (A. Heller) J.F. Macbr. Native HYFEA

  white waterleaf · Hydrophyllaceae 17 counties
• 
  Hydrophyllum fendleri (A. Gray) A. Heller var. fendleri Native HYFEF

  Fendler's waterleaf · Hydrophyllaceae 2 counties
• 
  Hydrophyllum tenuipes A. Heller Native HYTE

  Pacific waterleaf · Hydrophyllaceae 16 counties
• 
  Hylotelephium telephium (L.) H. Ohba Introduced HYTE10

  witch's moneybags · Crassulaceae 1 county
• 
  Hylotelephium telephium (L.) H. Ohba ssp. telephium Introduced HYTET2

  witch's moneybags · Crassulaceae 1 county
• 
  Hymenopappus filifolius Hook. Native HYFI

  fineleaf hymenopappus · Asteraceae 9 counties
• 
  Hymenopappus filifolius Hook. var. filifolius Native HYFIF

  fineleaf hymenopappus · Asteraceae 9 counties