Taxon Report

Allium atrorubens Wats. var. atrorubens

Great Basin onion

Print Report

© 2021 Steve Matson

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:

Ecology and Life History


Lifeform:	perennial bulbiferous herb
Blooming Period: May-Jun	May-Jun
Elevation:	1200-2315 (3935-7595)
General Habitats:	Great Basin scrub, Pinyon and juniper woodland
Microhabitat:	Rocky (sometimes), Sandy (sometimes)
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	2B.3
Global Rank:	G4T4
State Rank:	S2
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:	19
Element Occurrence Ranks:
Excellent (A)	0
Good (B)	5
Fair (C)	4
Poor (D)	0
None (X)	0
Unknown (U)	10

Location


California Endemic: False
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)

Threat List Data from the CNDDB


Threat List Total:	4
EOs with Threat Listed:	Total EOs	% of EOs
	7	37 %
Grazing	6	31%
Improper burning regime	3	15%
Non-native plant impacts	2	10%
Military operations	1	5%

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:

Selected References

Citation California Native Plant Society, Rare Plant Program. 2024. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 27 December 2024].