Species Details

Hesperocyparis abramsiana var. abramsiana

Santa Cruz cypress

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Photo of Hesperocyparis abramsiana var. abramsiana
© 2012 Neal Kramer
Photo of Hesperocyparis abramsiana var. abramsiana
© 2012 Neal Kramer
Photo of Hesperocyparis abramsiana var. abramsiana
© 2013 Al Keuter
Scientific Name:
Hesperocyparis abramsiana (C.B. Wolf) Bartel var. abramsiana
Common Name:
Santa Cruz cypress
Family: Cupressaceae
Element Code: PGCUP04081
USDA Plants Symbol: HEABA
Synonyms/Other Names:
CA Rare Plant Rank: 1B.2
Fed List: FT (2016-03-21)
State List: CE (1979-11-01)
Global Rank: G1T1
State Rank:
S1
Other Status: SB_CalBG/RSABG; SB_UCSC
CRPR Changes:
Add Date: 1974-01-01
Date Edited: 2023-05-02
Lifeform: perennial evergreen tree
Blooming Period:
JFMAMJJASOND
Elevation:
280 - 800 meters
920 - 2625 feet
General Habitats:
  • Closed-cone coniferous forest
  • Chaparral
  • Lower montane coniferous forest
Microhabitat Details:
Microhabitat:
  • Granitic (sometimes)
  • Sandstone (sometimes)
Notes:
Known only from the Santa Cruz Mtns. Threatened by development, agriculture, alteration of fire regimes, and introgression from planted H. macrocarpa and H glabra. See Cupressus abramsiana in The Jepson Manual (1993); USFWS also uses this name. See Aliso 1:215-222 (1948) for original description, Madroño 2(4):189-194 (1952) for distributional information, and Phytologia 91(1):160-185 and 91(2):287-299 (2009) for taxonomic treatments.
Threats:
Taxonomy:
Threat List Total: 13
Total EOs % of EOs
EOs with Threat Listed: 5 71 %
THREAT LIST:
Logging 4 57%
Non-native plant impacts 3 42%
Development 3 42%
Improper burning regime 3 42%
Wood cutting or brush clearing 2 28%
Total Occurrences: 7
Element Occurrence Ranks:
A B C D X U
0 3 0 1 0 3
Occurrence Status:
Historical >20 Years 2
Recent <=20 Years 5
Presence:
Presumed Extant 7
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Santa Cruz (SCR)
Quads: Name (Quad Code)
Big Basin (3712222), Davenport (3712212), Felton (3712211)
Notes:
Definitions of codes following a county and/or quad:
* Presumed extirpated
(?) Occurrence confirmed, but possibly extirpated
Quad and county data is imported from the CNDDB. Species may be present in other areas where conditions are favorable. These data should NOT be substituted for pre-project review or for on-site surveys.
Presumed Extant
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