Species Details

Allium atrorubens var. atrorubens

Great Basin onion

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Photo of Allium atrorubens var. atrorubens

Classification

Scientific Name: Allium atrorubens Wats. var. atrorubens
Common Name: Great Basin onion
Family:	Alliaceae
Element Code:	PMLIL02061
USDA Plants Symbol:	ALATA
Synonyms/Other Names:

Conservation Status

CA Rare Plant Rank:	2B.3
Fed List:	None
State List:	None
Global Rank:	G4T4
State Rank:	S2
Other Status:
CRPR Changes:
Add Date:	1994-01-01
Date Edited:	2022-02-01

Ecology and Life History

Lifeform: perennial bulbiferous herb

Blooming Period: May-Jun

Elevation:
1200 - 2315 meters
3935 - 7595 feet

General Habitats:

Great Basin scrub
Pinyon and juniper woodland

Microhabitat Details:

Microhabitat:

Rocky (sometimes)
Sandy (sometimes)

Notes

Notes: See Botany of the King Exploration, p. 352 (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:	4
	Total EOs	% of EOs
EOs with Threat Listed:	7	37 %
Grazing	6	31%
Improper burning regime	3	15%
Non-native plant impacts	2	10%
Military operations	1	5%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					19
A	B	C	D	X	U
0	5	4	0	0	10

Occurrence Status:
Historical >20 Years	16
Recent <=20 Years	3

Presence:
Presumed Extant	19
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
Arizona (AZ), California (CA), Nevada (NV), Utah (UT)

California Counties and Islands: Name (Code)
Inyo (INY), Lassen (LAS), Mono (MNO), San Bernardino (SBD)

Quads: Name (Quad Code)
Parker Canyon (4011938), Smoke Creek Ranch (4011958), Avawatz Pass (3511654), Benton Hot Springs (3711875), Big Alkali (3811922), Big Pine (3711823), Bodie (3811921), Bridgeport (3811932), Coso Peak (3611726), Doyle (4012011), East of Leach Lake (3511655), Leach Lake (3511656), Little Mud Flat (4012042), Lundy (3811912), Old Ibex Pass (3511664), Red Pass Lake Ne (3511643), Red Pass Lake Nw (3511644), River Spring (3711885), Shaffer Mtn. (4012043), Sheep Creek Spring (3511653), Silurian Lake (3511652), Silurian Valley (3511642), Spencer Creek (4012031), Tungsten Hills (3711835), Wendel (4012032)

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