Euphorbia hooveri
Common Name: Hoover's spurge
Family: Euphorbiaceae
Synonyms: Chamaesyce hooveri
Element Code: PDEUP0D150
Full Name: Euphorbia hooveri L.C. Wheeler

2010 Chris Winchell
Biology Glossary
Rarity Status Glossary
Occurrence Data from CDFW
California Natural Diversity Database Glossary
  • Total # of Known Element Occurrences: 29
  • Element Occurrence Ranks:
    A B C D X U
    2 9 9 0 5 4
  • Population Status:
    >20 yrs
    <=20 yrs
    16 13
  • Presence:
    Present Extant Possibly Extirpated Presumed Extirpated
    24 3 2
Notes Glossary
  • Threatened by grazing, agriculture, and non-native plants. See Proceedings of the Biological Society of Washington 53:9 (1940) for original description, MadroƱo 32(3):187-189 (1985) for alternative nomenclature, and Taxon 55:397-420 (2006) for taxonomic treatment.
  • To submit rare plant observation data, use the CNDDB field survey form. Please see also the CNPS Rare Plant Data page.
  • Date Added: 1974-01-01
  • Last Update: 2017-01-03
Location Glossary
  • Elevation: 25 - 250 meters
  • California Endemic: yes
  • Other States:
  • California Counties and Islands:   name (code)
    Butte (BUT),  Colusa (COL),  Glenn (GLE),  Merced (MER),  Stanislaus (STA),  Tehama (TEH),  Tulare (TUL)
  • Quads:   name (DWR code) USGS code
    Ivanhoe (333B) 3611942,  Monson (334A) 3611943,  Turner Ranch (402B) 3712026,  Cooperstown (441A) 3712065,  Montpelier (441C) 3712056,  Turlock Lake (441D) 3712055,  Logandale (562B) 3912242,  Hamlin Canyon (576B) 3912166,  Richardson Springs NW (593B) 3912188,  Nord (593C) 3912178,  Vina (594A) 3912281
  • Notes:
      Definitions of codes preceding a county and/or quad:
      * Presumed extirpated
      ? Uncertain about distribution or identity
      ?* Uncertain about distribution, but presumed extirpated if once present
      (?) Occurrence confirmed, but possibly extirpated
      Species may be present in other areas where conditions are favorable. This data should NOT be substituted for pre-project review or for on-site surveys.
Presumed Extant Presumed Extirpated or Unknown 457
Links to Leading Resources of Taxon Information
Suggested Citation
California Native Plant Society, Rare Plant Program. . Inventory of Rare and Endangered Plants of California (online edition, v8-03). Website [accessed ].

3611942=Ivanhoe (333B) 3611942;3611943=Monson (334A) 3611943;3712026=Turner Ranch (402B) 3712026;3712065=Cooperstown (441A) 3712065;3712056=Montpelier (441C) 3712056;3712055=Turlock Lake (441D) 3712055;3912242=Logandale (562B) 3912242;3912166=Hamlin Canyon (576B) 3912166;3912188=Richardson Springs NW (593B) 3912188;3912178=Nord (593C) 3912178;3912281=Vina (594A) 3912281