Hesperocyparis stephensonii
Common Name: Cuyamaca cypress
Family: Cupressaceae
Synonyms: Callitropsis stephensonii, Cupressus stephensonii
Element Code: PGCUP040B0
Full Name: Hesperocyparis stephensonii (C. B. Wolf) Bartel

2013 Joey Malone
Biology Glossary
Rarity Status Glossary
Occurrence Data from CDFW
California Natural Diversity Database Glossary
  • Total # of Known Element Occurrences: 5
  • Element Occurrence Ranks:
    A B C D X U
    0 0 0 0 1 4
  • Population Status:
    >20 yrs
    <=20 yrs
    3 2
  • Presence:
    Present Extant Possibly Extirpated Presumed Extirpated
    4 0 1
Notes Glossary
  • Threatened by alteration of fire regimes, specifically frequent wildfires; the 1950 Conejo fire extirpated plant over part of its range. Possibly threatened by mining Cleveland NF has adopted species management guidelines. Protected in part at King Creek RNA (USFS). A synonym of C. arizonica ssp. arizonica in TJM (1993), but genetic evidence does not support this interpretation.
  • To submit rare plant observation data, use the CNDDB field survey form. Please see also the CNPS Rare Plant Data page.
  • Date Added: 1980-01-01
  • Last Update: 2017-10-06
Location Glossary
  • Elevation: 1035 - 1705 meters
  • California Endemic: no
  • Other States: Baja California
  • California Counties and Islands:   name (code)
    San Diego (SDG)
  • Quads:   name (DWR code) USGS code
    Mount Laguna (019C) 3211674,  Cuyamaca Peak (020A) 3211685,  Tule Springs (020B) 3211686,  Descanso (020D) 3211675
  • 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 539
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 http://www.rareplants.cnps.org [accessed ].

3211674=Mount Laguna (019C) 3211674;3211685=Cuyamaca Peak (020A) 3211685;3211686=Tule Springs (020B) 3211686;3211675=Descanso (020D) 3211675