Butte County

Showing 1–50 of 1,045.

• 
  Abronia mellifera Douglas ex Hook. Native ABME

  white sand verbena · Nyctaginaceae
• 
  Acer glabrum Torr. Native ACGL

  Rocky Mountain maple · Aceraceae
• 
  Acer glabrum Torr. var. glabrum Native ACGLG2

  Rocky Mountain maple · Aceraceae
• 
  Achillea millefolium L. Both ACMI2

  common yarrow · Asteraceae
• 
  Achillea millefolium L. var. occidentalis DC. Native ACMIO

  western yarrow · Asteraceae
• 
  Achnatherum hymenoides (Roem. & Schult.) Barkworth Native ACHY

  Indian ricegrass · Poaceae
• 
  Achnatherum nelsonii (Scribn.) Barkworth Native ACNE9

  Columbia needlegrass · Poaceae
• 
  Achnatherum nelsonii (Scribn.) Barkworth ssp. nelsonii Native ACNEN2

  Columbia needlegrass · Poaceae
• 
  Achnatherum occidentale (Thurb.) Barkworth Native ACOC3

  western needlegrass · Poaceae
• 
  Achnatherum occidentale (Thurb.) Barkworth ssp. californicum (Merr. & Burtt Davy) Barkworth Native ACOCC

  California needlegrass · Poaceae
• ⚘
  Achnatherum swallenii (C.L. Hitchc. & Spellenb.) Barkworth Native ACSW3

  Swallen's needlegrass · Poaceae
• 
  Achnatherum thurberianum (Piper) Barkworth Native ACTH7

  Thurber's needlegrass · Poaceae
• 
  Acroptilon repens (L.) DC. Introduced ACRE3

  hardheads · Asteraceae
• 
  Agastache cusickii (Greenm.) A. Heller Native AGCU

  Cusick's giant hyssop · Lamiaceae
• 
  Agastache urticifolia (Benth.) Kuntze Native AGUR

  nettleleaf giant hyssop · Lamiaceae
• 
  Agastache urticifolia (Benth.) Kuntze var. urticifolia Native AGURU

  nettleleaf giant hyssop · Lamiaceae
• 
  Ageratina occidentalis (Hook.) R.M. King & H. Rob. Native AGOC2

  western snakeroot · Asteraceae
• 
  Agoseris glauca (Pursh) Raf. Native AGGL

  pale agoseris · Asteraceae
• 
  Agoseris glauca (Pursh) Raf. var. agrestis (Osterh.) Q. Jones ex Cronquist Native AGGLA

  pale agoseris · Asteraceae
• 
  Agoseris glauca (Pursh) Raf. var. dasycephala (Torr. & A. Gray) Jeps. Native AGGLD

  pale agoseris · Asteraceae
• 
  Agoseris glauca (Pursh) Raf. var. glauca Native AGGLG

  pale agoseris · Asteraceae
• 
  Agoseris glauca (Pursh) Raf. var. laciniata (D.C. Eaton) Smiley Native AGGLL

  false agoseris · Asteraceae
• 
  Agoseris heterophylla (Nutt.) Greene Native AGHE2

  annual agoseris · Asteraceae
• 
  Agoseris heterophylla (Nutt.) Greene var. heterophylla Native AGHEH

  annual agoseris · Asteraceae
• 
  Agropyron cristatum (L.) Gaertn. Introduced AGCR

  crested wheatgrass · Poaceae
• 
  Agropyron cristatum (L.) Gaertn. ssp. pectinatum (M. Bieb.) Tzvelev Introduced AGCRP8

  crested wheatgrass · Poaceae
• 
  Agrostis gigantea Roth Introduced AGGI2

  redtop · Poaceae
• 
  Agrostis scabra Willd. Native AGSC5

  rough bentgrass · Poaceae
• 
  Agrostis stolonifera L. Introduced AGST2

  creeping bentgrass · Poaceae
• 
  Aliciella leptomeria (A. Gray) J.M. Porter Native ALLE7

  sand gilia · Polemoniaceae
• 
  Allium acuminatum Hook. Native ALAC4

  tapertip onion · Liliaceae
• 
  Allium anceps Kellogg Native ALAN

  twinleaf onion · Liliaceae
• 
  Allium cernuum Roth Native ALCE2

  nodding onion · Liliaceae
• 
  Allium cernuum Roth var. cernuum Native ALCEC2

  nodding onion · Liliaceae
• 
  Allium geyeri S. Watson Native ALGE

  Geyer's onion · Liliaceae
• 
  Allium parvum Kellogg Native ALPA3

  small onion · Liliaceae
• 
  Allium simillimum L.F. Hend. Native ALSI

  simil onion · Liliaceae
• 
  Allium textile A. Nelson & J.F. Macbr. Native ALTE

  textile onion · Liliaceae
• 
  Allium tolmiei (Hook.) Baker ex S. Watson Native ALTO

  Tolmie's onion · Liliaceae
• 
  Alnus incana (L.) Moench Native ALIN2

  gray alder · Betulaceae
• 
  Alnus incana (L.) Moench ssp. tenuifolia (Nutt.) Breitung Native ALINT

  thinleaf alder · Betulaceae
• 
  Alopecurus aequalis Sobol. Native ALAE

  shortawn foxtail · Poaceae
• 
  Alopecurus aequalis Sobol. var. aequalis Native ALAEA

  shortawn foxtail · Poaceae
• 
  Alyssum alyssoides (L.) L. Introduced ALAL3

  pale madwort · Brassicaceae
• 
  Alyssum desertorum Stapf Introduced ALDE

  desert madwort · Brassicaceae
• 
  Alyssum desertorum Stapf var. desertorum Introduced ALDED

  desert madwort · Brassicaceae
• 
  Amaranthus retroflexus L. Native AMRE

  redroot amaranth · Amaranthaceae
• 
  Amelanchier utahensis Koehne Native AMUT

  Utah serviceberry · Rosaceae
• 
  Amelanchier utahensis Koehne var. utahensis Native AMUTU

  Utah serviceberry · Rosaceae
• 
  Amsinckia menziesii (Lehm.) A. Nelson & J.F. Macbr. Native AMME

  Menzies' fiddleneck · Boraginaceae