Species Details

Streptanthus oliganthus

Masonic Mountain jewelflower

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Classification

Scientific Name: Streptanthus oliganthus Roll.
Common Name: Masonic Mountain jewelflower
Family:	Brassicaceae
Element Code:	PDBRA2G0V0
USDA Plants Symbol:	STOL
Synonyms/Other Names:

Conservation Status

CA Rare Plant Rank:	1B.2
Fed List:	None
State List:	None
Global Rank:	G3
State Rank:	S3
Other Status:	BLM_S; USFS_S
CRPR Changes:
Add Date:	1974-01-01
Date Edited:	2021-05-26

Ecology and Life History

Lifeform: perennial herb

Blooming Period: Jun-Jul

Elevation:
1980 - 3050 meters
6495 - 10005 feet

General Habitats:

Pinyon and juniper woodland (granitic, rocky, volcanic)

Microhabitat Details:

Microhabitat:

Notes

Notes: Known in CA from fewer than twenty occurrences. Threatened by mining, grazing, and vehicles. On watch list in NV. See Contributions from the Dudley Herbarium 3:372 (1946) for original description.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	5
	Total EOs	% of EOs
EOs with Threat Listed:	5	24 %
Erosion/runoff	1	4%
Improper burning regime	1	4%
Military operations	1	4%
Mining	1	4%
Road/trail construction/maint.	1	4%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					21
A	B	C	D	X	U
1	3	1	1	0	15

Occurrence Status:
Historical >20 Years	17
Recent <=20 Years	4

Presence:
Presumed Extant	21
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
California (CA), Nevada (NV)

California Counties and Islands: Name (Code)
Alpine (ALP), Mono (MNO), Tuolumne (TUO)

Quads: Name (Quad Code)
Bridgeport (3811932), Chris Flat (3811944), Conway Stage Station (3811941), Dome Hill (3811931), Kirkwood Spring (3811828), Lundy (3811912), Mt. Patterson (3811943), Pickel Meadow (3811935), Sonora Pass (3811936), Sweetwater Creek (3811942)

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

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CNPS Rare Plant Inventory