Taxon Details

Allium nevadense

Nevada onion

View Report Copy Link Calflora eFlora CCH CalPhotos iNaturalist

Taxon Summary:

Allium nevadense, commonly known as Nevada onion, is a perennial bulbiferous herb in the Alliaceae that is found in California and elsewhere. It occurs within Pinyon and juniper woodland (gravelly, and sandy), growing at elevations from 810 to 1700 meters. Allium nevadense is ranked 2B.3, Plants Rare, Threatened, or Endangered in California, But More Common Elsewhere; Not very threatened in California.

Classification

Scientific Name: Allium nevadense Wats.
Common Name: Nevada onion
Family:	Alliaceae
Element Code:	PMLIL021J0
USDA Plants Symbol:	ALNE
Synonyms/Other Names:
Name Status:	JEF, FNA, POWO, IPNI, Tropicos

Conservation Status

CA Rare Plant Rank:	2B.3
Fed List:	None
State List:	None
Global Rank:	G4
State Rank:	S3
Other Status:
CRPR Changes:
Add Date:	1994-01-01
Date Edited:	2022-02-01

Ecology and Life History

Lifeform: perennial bulbiferous herb

Blooming Period: Apr-May

Elevation:
810 - 1700 meters
2660 - 5580 feet

General Habitats:

Pinyon and juniper woodland (gravelly, sandy)

Microhabitat Details:

Microhabitat:

Notes

Notes: Potentially threatened by wind energy development. See Botany of the King Exploration p. 351 (1871) for original description, and Madroño 39(2):83-89 (1992) for distribution in CA.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	7
	Total EOs	% of EOs
EOs with Threat Listed:	6	24 %
Non-native plant impacts	3	12%
Non-native animal impacts	2	8%
Development	1	4%
Foot traffic/trampling	1	4%
ORV activity	1	4%
Other	1	4%
Recreational use (non-ORV)	1	4%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					25
A	B	C	D	X	U
0	1	1	1	0	22

Occurrence Status:
Historical >20 Years	11
Recent <=20 Years	14

Presence:
Presumed Extant	25
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
Arizona (AZ), California (CA), Colorado (CO), Idaho (ID), Nevada (NV), Oregon (OR), Utah (UT)

California Counties and Islands: Name (Code)
Inyo (INY), San Bernardino (SBD)

Quads: Name (Quad Code)
Calvada Springs (3511588), Castle Peaks (3511532), Clark Mtn. (3511555), Colton Well (3411584), Columbia Mtn. (3511514), Fountain Peak (3411585), Hackberry Mountain (3511512), Hart Peak (3511531), Horse Thief Springs (3511578), Ivanpah (3511533), Kingston Spring (3511558), Manly Peak (3511781), Mescal Range (3511545), Mesquite Mountains (3511566), Mid Hills (3511524), Mineral Hill (3511544)

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

CNPS Rare Plant Inventory