Species Details

Allium sanbornii var. sanbornii

Sanborn's onion

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Photo of Allium sanbornii var. sanbornii

Classification

Scientific Name: Allium sanbornii A.W. Wood var. sanbornii
Common Name: Sanborn's onion
Family:	Alliaceae
Element Code:	PMLIL02212
USDA Plants Symbol:	ALSAS
Synonyms/Other Names:

Conservation Status

CA Rare Plant Rank:	4.2
Fed List:	None
State List:	None
Global Rank:	G3T4?
State Rank:	S3S4
Other Status:
CRPR Changes:
Add Date:	1994-01-01
Date Edited:	2024-08-06

Ecology and Life History

Lifeform: perennial bulbiferous herb

Blooming Period: May-Sep

Elevation:
260 - 1510 meters
855 - 4955 feet

General Habitats:

Chaparral
Cismontane woodland
Lower montane coniferous forest

Microhabitat Details:

Microhabitat:

Gravelly
Serpentine (usually)

Notes

Notes: Known from small, widely scattered populations. Possibly threatened by logging, vehicles, and road maintenance. On review list in OR. See Proceedings of the Academy of Natural Sciences of Philadelphia 20:171 (1868) for original description, and Madroño 36(2):122-130 (1989) for taxonomic treatment.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	0
	Total EOs	% of EOs
EOs with Threat Listed:	0	0 %

Occurrence Data from the CNDDB

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

Occurrence Status:
Historical >20 Years	0
Recent <=20 Years	0

Presence:
Presumed Extant	0
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
California (CA), Oregon (OR)

California Counties and Islands: Name (Code)
Butte (BUT), Calaveras (CAL), El Dorado (ELD), Nevada (NEV), Placer (PLA), Plumas (PLU), Shasta (SHA), Tehama (TEH), Tuolumne (TUO), Yuba (YUB)

Quads: Name (Quad Code)
Barkley Mtn. (4012126), Berry Creek (3912164), Bollibokka Mtn. (4012282), Brush Creek (3912163), Butte Meadows (4012115), Challenge (3912142), Cherry Lake South (3711988), Chicago Park (3912028), Clipper Mills (3912152), Cohasset (3912186), Colfax (3912018), Devil Peak (3812085), Devils Nose (3812044), Devils Parade Ground (4012116), Dorrington (3812033), Dutch Flat (3912027), Finley Butte (4012137), Foresthill (3912017), Fort Mountain (3812034), French Corral (3912132), Garnet Hill (3812043), Grass Valley (3912121), Greek Store (3912015), Hagaman Gulch (4012157), Hatchet Mtn. Pass (4012177), Igo (4012255), Inskip Hill (4012138), Lyonsville (4012136), Manton (4012147), Michigan Bluff (3912016), Miller Mtn. (4012167), Minnesota Mtn. (4012272), Montgomery Creek (4012178), Murphys (3812024), Nevada City (3912131), Omo Ranch (3812055), Onion Butte (4012125), Panther Spring (4012127), Paradise East (3912175), Pilot Hill (3812171), Project City (4012263), Rackerby (3912143), Roaring Creek (4012188), Rough And Ready (3912122), Shasta Dam (4012264), Stirling City (3912185), Washington (3912037), Westville (3912026), Whitmore (4012168)

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