CNPS

CNPS Rare Plant Inventory

Species Details

Epilobium nivium

Snow Mountain willowherb

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Photo of Epilobium nivium
©2011 Ryan Elliott 		Photo of Epilobium nivium
©2011 Ryan Elliott 		Photo of Epilobium nivium
Image by Ryan Elliott

  Classification

Scientific Name:
Epilobium nivium Bdg.
Common Name:
Snow Mountain willowherb
Family: Onagraceae
Element Code: PDONA060M0
USDA Plants Symbol: EPNI
Synonyms/Other Names:

  Conservation Status

CA Rare Plant Rank: 1B.2
Fed List: None
State List: None
Global Rank: G2G3
State Rank:
 S2S3
Other Status: SB_UCSC; USFS_S
CRPR Changes:
Add Date: 1974-01-01
Date Edited: 2022-12-06

  Ecology and Life History

Lifeform: perennial herb
Blooming Period: Jun-Oct
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Elevation:
795 - 2500 meters
2610 - 8205 feet
General Habitats:
  • Chaparral
  • Upper montane coniferous forest
Microhabitat Details:
Microhabitat:
  • Rocky

  Notes

Notes:
Threatened by recreation and foot traffic, and possibly by logging. See Zoe 3:242-243 (1892) for original description.
Threats:
Taxonomy:

  Threat List Data from the CNDDB

Threat List Total: 4
Total EOs % of EOs
EOs with Threat Listed: 5 26 %
THREAT LIST:
ORV activity 3 15%
Recreational use (non-ORV) 2 10%
Foot traffic/trampling 2 10%
Wood cutting or brush clearing 1 5%

  Occurrence Data from the CNDDB

Total Occurrences: 19
Element Occurrence Ranks:
A B C D X U
0 6 6 0 0 7
Occurrence Status:
Historical >20 Years 8
Recent <=20 Years 11
Presence:
Presumed Extant 19
Possibly Extirpated 0
Presumed Extirpated 0

  Location

California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Colusa (COL), Glenn (GLE), Lake (LAK), Mendocino (MEN), Tehama (TEH), Trinity (TRI)
Quads: Name (Quad Code)
Bluenose Ridge (3912382), Crockett Peak (3912247), Felkner Hill (3912256), Fouts Springs (3912236), Hull Mountain (3912258), Leech Lake Mtn. (3912381), Potato Hill (3912237), South Yolla Bolly (4012217), St. John Mtn. (3912246)
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.
Regional Map

  Map

Presumed Extant
Click on quad for name. Hold Shift Key to use mouse scroll wheel

  Selected References

Other: USFS Potential Species of Conservation Concern Profile
Suggested Citation:
California Native Plant Society, Rare Plant Program. 2023. Rare Plant Inventory (online edition, v9.5). Website https://www.rareplants.cnps.org [accessed 29 September 2023].