Taxon Details
Hesperocyparis stephensonii
Cuyamaca cypress
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© 2011 Joey Malone |
© 2011 Joey Malone |
© 2011 Joey Malone |
Taxon Summary:
Hesperocyparis stephensonii, commonly known as Cuyamaca cypress, is a perennial evergreen tree in the Cupressaceae that is found in California and elsewhere. It occurs within Chaparral, Cismontane woodland, Closed-cone coniferous forest, and Riparian forest, growing at elevations from 1035 to 1705 meters. Hesperocyparis stephensonii is ranked 1B.1, Plants Rare, Threatened or Endangered in California and Elsewhere; Seriously threatened in California.|
Scientific Name: Hesperocyparis stephensonii (C. B. Wolf) Bartel |
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Common Name: Cuyamaca cypress |
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| Family: | Cupressaceae | |
| Element Code: | PGCUP04013 | |
| USDA Plants Symbol: | HEST10 | |
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Synonyms/Other Names: |
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| Name Status: |
JEF, FNA, POWO, IPNI, Tropicos |
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| CA Rare Plant Rank: | 1B.1 |
| Fed List: | None |
| State List: | None |
| Global Rank: | G1 |
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State Rank: |
S1 |
| Other Status: | SB_CalBG/RSABG; USFS_S |
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CRPR Changes: |
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| Add Date: | 1980-01-01 |
| Date Edited: | 2025-10-29 |
| Lifeform: perennial evergreen tree | ||||||||||||||
Blooming Period:
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Elevation:
1035 - 1705 meters 3395 - 5595 feet |
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General Habitats:
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| Microhabitat Details: | ||||||||||||||
Microhabitat:
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Notes: 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. |
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Threats: |
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Taxonomy: |
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| Threat List Total: | 1 | |
| Total EOs | % of EOs | |
| EOs with Threat Listed: | 3 | 60 % |
| THREAT LIST: | ||
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| Improper burning regime | 3 | 60% |
| Total Occurrences: | 5 | ||||
| Element Occurrence Ranks: | |||||
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| A | B | C | D | X | U |
| 0 | 0 | 0 | 0 | 1 | 4 |
| Occurrence Status: | |||||
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| Historical >20 Years | 3 | ||||
| Recent <=20 Years | 2 | ||||
| Presence: | |||||
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| Presumed Extant | 4 | ||||
| Possibly Extirpated | 0 | ||||
| Presumed Extirpated | 1 | ||||
| California Endemic: | |||||||||||||
| California Island: | |||||||||||||
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States: Name (Code) Baja California (BA), California (CA) |
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California Counties and Islands: Name (Code) San Diego (SDG) |
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Quads: Name (Quad Code) Cuyamaca Peak (3211685), Mount Laguna (3211674), Tule Springs (3211686) |
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Notes:
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Presumed Extant
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