Taxon Report

Rubus nivalis Dougl.

snow dwarf bramble

Print Report

Taxon Summary

Rubus nivalis, commonly known as snow dwarf bramble, is a perennial evergreen vine in the Rosaceae that is found in California and elsewhere. It occurs within North Coast coniferous forest, growing at elevations from 1085 to 1350 meters. Rubus nivalis is ranked 2B.3, Plants Rare, Threatened, or Endangered in California, But More Common Elsewhere; Not very threatened in California.

Classification


Scientific Name:	Rubus nivalis Dougl.
Common Name:	snow dwarf bramble
Family:	Rosaceae
Element Code:	PDROS1K4S0
USDA Plants Symbol:	RUNI2
Synonyms/Other Names:

Ecology and Life History


Lifeform:	perennial evergreen vine
Blooming Period: Jun-Aug	Jun-Aug
Elevation:	1085-1350 (3560-4430)
General Habitats:	North Coast coniferous forest
Microhabitat:
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	2B.3
Global Rank:	G4?
State Rank:	S1
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:	4
Element Occurrence Ranks:
Excellent (A)	0
Good (B)	0
Fair (C)	0
Poor (D)	0
None (X)	0
Unknown (U)	4

Location


California Endemic: False
California Counties and Islands: Name (Code)
Del Norte (DNT), Siskiyou (SIS)
Quads: Name (Quad Code)
Takilma (4212315), Devils Punchbowl (4112376), Medicine Mtn. (4112343), Polar Bear Mtn. (4112385), Ukonom Lake (4112353)

Threat List Data from the CNDDB


Threat List Total:	1
EOs with Threat Listed:	Total EOs	% of EOs
	2	50 %
Logging	2	50%

Notes




Threats:

Taxonomy:

Selected References

Rubus nivalis 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 27 January 2025].