California

• Alameda 06001
  1,856 taxa Open ↗
• Alpine 06003
  1,174 taxa Open ↗
• Amador 06005
  1,226 taxa Open ↗
• Butte 06007
  2,704 taxa Open ↗
• Calaveras 06009
  1,227 taxa Open ↗
• Colusa 06011
  1,330 taxa Open ↗
• Contra Costa 06013
  1,712 taxa Open ↗
• Del Norte 06015
  1,424 taxa Open ↗
• El Dorado 06017
  1,950 taxa Open ↗
• Fresno 06019
  2,373 taxa Open ↗

Showing 4,901–4,950 of 9,954.

• 
  Hordeum vulgare L. Introduced HOVU

  common barley · Poaceae 22 counties
• 
  Horkelia bolanderi A. Gray Native HOBO2

  border horkelia · Rosaceae 3 counties
• 
  Horkelia californica Cham. & Schltdl. Native HOCA3

  California horkelia · Rosaceae 27 counties
• 
  Horkelia californica Cham. & Schltdl. ssp. californica Native HOCAC

  California horkelia · Rosaceae 4 counties
• 
  Horkelia californica Cham. & Schltdl. ssp. dissita (Crum) Ertter Native HOCAD

  California horkelia · Rosaceae 18 counties
• 
  Horkelia californica Cham. & Schltdl. ssp. frondosa (Greene) Ertter Native HOCAF2

  California horkelia · Rosaceae 6 counties
• 
  Horkelia clevelandii (Greene) Rydb. Native HOCL

  Cleveland's horkelia · Rosaceae 2 counties
• 
  Horkelia congesta Douglas ex Hook. Native HOCO

  Sierra horkelia · Rosaceae 1 county
• 
  Horkelia congesta Douglas ex Hook. ssp. nemorosa D.D. Keck Native HOCON

  Sierra horkelia · Rosaceae 1 county
• 
  Horkelia cuneata Lindl. Native HOCU

  wedgeleaf horkelia · Rosaceae 14 counties
• 
  Horkelia cuneata Lindl. ssp. cuneata Native HOCUC

  wedgeleaf horkelia · Rosaceae 6 counties
• 
  Horkelia cuneata Lindl. ssp. puberula (Greene) D.D. Keck Native HOCUP

  wedgeleaf horkelia · Rosaceae 8 counties
• 
  Horkelia cuneata Lindl. ssp. sericea (A. Gray) D.D. Keck Native HOCUS

  wedgeleaf horkelia · Rosaceae 9 counties
• 
  Horkelia daucifolia (Greene) Rydb. Native HODA

  carrotleaf horkelia · Rosaceae 4 counties
• 
  Horkelia daucifolia (Greene) Rydb. ssp. daucifolia Native HODAD

  carrotleaf horkelia · Rosaceae 3 counties
• 
  Horkelia daucifolia (Greene) Rydb. ssp. latior D.D. Keck Native HODAL

  carrotleaf horkelia · Rosaceae 1 county
• 
  Horkelia fusca Lindl. Native HOFU

  pinewoods horkelia · Rosaceae 22 counties
• 
  Horkelia fusca Lindl. ssp. capitata (Lindl.) D.D. Keck Native HOFUC2

  bighead horkelia · Rosaceae 3 counties
• 
  Horkelia fusca Lindl. ssp. parviflora (Nutt. ex Torr. & A. Gray) D.D. Keck Native HOFUP2

  smallflower horkelia · Rosaceae 22 counties
• 
  Horkelia fusca Lindl. ssp. tenella (S. Watson) D.D. Keck Native HOFUT

  pinewoods horkelia · Rosaceae 5 counties
• 
  Horkelia hendersonii Howell Native HOHE2

  Henderson's horkelia · Rosaceae 1 county
• 
  Horkelia hispidula Rydb. Native HOHI

  White Mountain horkelia · Rosaceae 2 counties
• 
  Horkelia marinensis (Elmer) Crum ex D.D. Keck Native HOMA3

  Point Reyes horkelia · Rosaceae 4 counties
• 
  Horkelia parryi Greene Native HOPA2

  Parry horkelia · Rosaceae 4 counties
• 
  Horkelia rydbergii Elmer Native HORY

  Rydberg's horkelia · Rosaceae 4 counties
• 
  Horkelia sericata S. Watson Native HOSE

  silky horkelia · Rosaceae 2 counties
• 
  Horkelia tenuiloba (Torr.) A. Gray Native HOTE2

  Santa Rosa horkelia · Rosaceae 3 counties
• 
  Horkelia tridentata Torr. Native HOTR

  threetooth horkelia · Rosaceae 23 counties
• 
  Horkelia tridentata Torr. ssp. flavescens (Rydb.) D.D. Keck Native HOTRF

  threetooth horkelia · Rosaceae 11 counties
• 
  Horkelia tridentata Torr. ssp. tridentata Native HOTRT

  threetooth horkelia · Rosaceae 17 counties
• 
  Horkelia truncata Rydb. Native HOTR2

  Ramona horkelia · Rosaceae 2 counties
• 
  Horkelia tularensis (J.T. Howell) Munz Native HOTU

  Kern Plateau horkelia · Rosaceae 1 county
• 
  Horkelia wilderae Parish Native HOWI

  Barton Flats horkelia · Rosaceae 1 county
• 
  Horkelia yadonii Ertter Native HOYA2

  Santa Lucia horkelia · Rosaceae 3 counties
• 
  Horkeliella congdonis (Rydb.) Rydb. Native HOCO5

  Congdon's false horkelia · Rosaceae 3 counties
• 
  Horkeliella purpurascens (S. Watson) Rydb. Native HOPU8

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

  prostrate hutchinsia · Brassicaceae 21 counties
• 
  Horsfordia alata (S. Watson) A. Gray Native HOAL

  pink velvetmallow · Malvaceae 2 counties
• 
  Horsfordia newberryi (S. Watson) A. Gray Native HONE

  Newberry's velvetmallow · Malvaceae 3 counties
• 
  Howellanthus dalesianus (J.T. Howell) Walden & R.Patt. Native HODA2

  Scott Mountain phacelia · Hydrophyllaceae 3 counties
• 
  Howellia aquatilis A. Gray Native HOAQ

  water howellia · Campanulaceae 1 county
• 
  Howelliella ovata (Eastw.) Rothm. Native HOOV

  ovateleaf snapdragon · Scrophulariaceae 6 counties
• 
  Hulsea algida A. Gray Native HUAL

  Pacific hulsea · Asteraceae 9 counties
• 
  Hulsea brevifolia A. Gray Native HUBR

  shortleaf alpinegold · Asteraceae 5 counties
• 
  Hulsea californica Torr. & A. Gray Native HUCA

  San Diego alpinegold · Asteraceae 1 county
• 
  Hulsea heterochroma A. Gray Native HUHE

  redray alpinegold · Asteraceae 20 counties
• 
  Hulsea mexicana Rydb. Native HUME

  Mexican alpinegold · Asteraceae 1 county
• 
  Hulsea nana A. Gray Native HUNA

  dwarf alpinegold · Asteraceae 6 counties
• 
  Hulsea vestita A. Gray Native HUVE

  pumice alpinegold · Asteraceae 11 counties
• 
  Hulsea vestita A. Gray ssp. callicarpha (H.M. Hall) Wilken Native HUVEC

  pumice alpinegold · Asteraceae 2 counties