Taxon Details

Allium geyeri var. tenerum

bulbil onion

View Report Copy Link Calflora eFlora CCH CalPhotos iNaturalist

Taxon Summary:

Allium geyeri var. tenerum, commonly known as bulbil onion, is a perennial bulbiferous herb in the Alliaceae that is found in California and elsewhere. It occurs within Meadows and seeps, growing at elevations from 1495 to 1495 meters. Allium geyeri var. tenerum is ranked 2B.1, Plants Rare, Threatened, or Endangered in California, But More Common Elsewhere; Seriously threatened in California.

Classification

Scientific Name: Allium geyeri S. Watson var. tenerum M.E. Jones
Common Name: bulbil onion
Family:	Alliaceae
Element Code:	PMLIL02102
USDA Plants Symbol:	ALGET
Synonyms/Other Names:
Name Status:	JEF, FNA, POWO, IPNI, Tropicos

Conservation Status

CA Rare Plant Rank:	2B.1
Fed List:	None
State List:	None
Global Rank:	G4G5T4T5
State Rank:	S1
Other Status:
CRPR Changes: added to 2B.1 on 2021-02-03
Add Date:	2021-02-03
Date Edited:	2023-06-06

Ecology and Life History

Lifeform: perennial bulbiferous herb

Blooming Period: May

Elevation:
1495 - 1495 meters
4905 - 4905 feet

General Habitats:

Meadows and seeps

Microhabitat Details:

Microhabitat:

Rocky
Streambanks

Notes

Notes: Discovered in CA by L.P. Janeway in 2016. See Contributions to Western Botany 10:28 (1902) for original description, and Newsletter of the Friends of the Chico State Herbarium 26(1):7-9 (2020) for information on discovery in CA.
Threats:
Taxonomy:

Threat List Data from the CNDDB

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

Occurrence Data from the CNDDB

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

Occurrence Status:
Historical >20 Years	0
Recent <=20 Years	1

Presence:
Presumed Extant	1
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
Arizona (AZ), California (CA), Colorado (CO), Idaho (ID), Montana (MT), Nevada (NV), New Mexico (NM), Oregon (OR), Utah (UT), Washington (WA), Wyoming (WY)

California Counties and Islands: Name (Code)
Modoc (MOD)

Quads: Name (Quad Code)
Whittemore Ridge (4112066)

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 Status Review:	Proposed Addition to California Rare Plant Rank 2B.1, G4G5T4 / S1 (2021)
Species Account:	Allium geyeri var. tenerum account for potential Species of Conservation Concern evaluation (2022)

CNPS Rare Plant Inventory