Taxon Report

Potentilla newberryi Gray

Newberry's cinquefoil

Print Report


© 2006 Keir Morse

  Classification

Scientific Name:
Potentilla newberryi Gray
Common Name:
Newberry's cinquefoil
Family: Rosaceae
Element Code: PDROS1B130
USDA Plants Symbol: PONE7
Synonyms/Other Names:

Ecology and Life History

Lifeform: perennial herb
Blooming Period: May-Aug May-Aug
Elevation: 1300-2200 (4265-7220)
General Habitats: Marshes and swamps, Vernal pools
Microhabitat:
Microhabitat Details:

Conservation Status

CA Rare Plant Rank: 2B.3
Global Rank: G3G4
State Rank:
S2S3
State List: None
Fed List: None
Other Status:
CRPR Changes:
  • changed from 2.3 to 2B.3 on 2013-06-12

Occurrence Data from the CNDDB

Total Occurrences: 23
Element Occurrence Ranks:
   Excellent (A) 3
   Good (B) 3
   Fair (C) 3
   Poor (D) 3
   None (X) 0
   Unknown (U) 11
California Endemic:  False
California Counties and Islands: Name (Code)
Lassen (LAS), Modoc (MOD), Shasta (SHA), Siskiyou (SIS)
Quads: Name (Quad Code)
Big Sage Reservoir (4112056), Captain Jacks Stronghold (4112175), Dorris (4112188), Double Head Mtn. (4112172), Grass Lake (4112262), Jacks Backbone (4012166), MacDoel (4112271), Mahogany Ridge (4112055), Mount Dome (4112176), Newell (4112183), Penoyar (4112261), Perez (4112163), Pinnacle Lake (4112171), Rimrock Lake (4112162), Sagebrush Butte (4112181), Said Valley (4012087), Sams Neck (4112281), Sheep Mountain (4112178), South Mtn. (4112076), Swains Hole (4012163), West Haight Mtn. (4112251), Whitinger Mtn. (4012086)

Threat List Data from the CNDDB

Threat List Total: 8
EOs with Threat Listed: Total EOs % of EOs
12 52 %
Grazing 10 43%
Non-native plant impacts 4 17%
Road/trail construction/maint. 4 17%
Foot traffic/trampling 2 8%
Recreational use (non-ORV) 2 8%
ORV activity 1 4%
Other 1 4%
Mining 1 4%

Notes

Does plant occur in MNO Co.?
Threats:
Possibly threatened by trampling and grazing.
Taxonomy:

Selected References

Report of the Pacific Railroad Expedition 6(3):72 (1857) as Ivesia gracilis.
Potentilla newberryi profile for potential Species of Conservation Concern evaluation (2018)
USFS Potential Species of Conservation Concern Profile
Citation California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 8 January 2025].