Species Details

Neviusia cliftonii

Shasta snow-wreath

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Photo of Neviusia cliftonii
©2008 Steve Matson
Photo of Neviusia cliftonii
©2008 Steve Matson
Photo of Neviusia cliftonii
©2008 Amanda Shufelberger
Scientific Name:
Neviusia cliftonii Shevock, B. Ertter & D.W. Taylor
Common Name:
Shasta snow-wreath
Family: Rosaceae
Element Code: PDROS14020
USDA Plants Symbol: NECL
Synonyms/Other Names:
CA Rare Plant Rank: 1B.2
Fed List: None
State List: CT (2023-04-04)
Global Rank: G2
State Rank:
S2
Other Status: SB_CalBG/RSABG; USFS_S
CRPR Changes:
Add Date: 1994-01-01
Date Edited: 2023-06-06
Lifeform: perennial deciduous shrub
Blooming Period: Apr-Jun
JFMAMJJASOND
Elevation:
300 - 590 meters
985 - 1935 feet
General Habitats:
  • Cismontane woodland
  • Lower montane coniferous forest
  • Riparian woodland
Microhabitat Details: metavolcanic
Microhabitat:
  • Carbonate (sometimes)
  • Streambanks (often)
  • Volcanic
Notes:
Known only from near Lake Shasta. Potentially threatened by logging, mining, and proposed dam raise project. Possibly threatened by road maintenance and non-native plants. See Novon 2(4):285-289 (1992) for original description, Fremontia 22(3):3-13 (1993) for species account and information about discovery, and Fremontia 33(2):24-26 (2005) for information on habitat and geology.
Threats:
Taxonomy:
Threat List Total: 7
Total EOs % of EOs
EOs with Threat Listed: 10 38 %
THREAT LIST:
Non-native plant impacts 8 30%
Logging 4 15%
Road/trail construction/maint. 3 11%
ORV activity 1 3%
Mining 1 3%
Total Occurrences: 26
Element Occurrence Ranks:
A B C D X U
3 20 0 0 0 3
Occurrence Status:
Historical >20 Years 3
Recent <=20 Years 23
Presence:
Presumed Extant 26
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Shasta (SHA)
Quads: Name (Quad Code)
Bella Vista (4012262), Bollibokka Mtn. (4012282), Devils Rock (4012271), Goose Gap (4012281), Hanland Peak (4012283), Minnesota Mtn. (4012272), Montgomery Creek (4012178), O'Brien (4012273), Project City (4012263)
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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