Species Details

Streptanthus glandulosus ssp. pulchellus

Mt. Tamalpais bristly jewelflower

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Classification

Scientific Name: Streptanthus glandulosus Hook. ssp. pulchellus (Greene) Kruckeberg
Common Name: Mt. Tamalpais bristly jewelflower
Family:	Brassicaceae
Element Code:	PDBRA2G0J2
USDA Plants Symbol:	STGLP
Synonyms/Other Names:

Conservation Status

CA Rare Plant Rank:	1B.2
Fed List:	None
State List:	None
Global Rank:	G4T2
State Rank:	S2
Other Status:	SB_CalBG/RSABG
CRPR Changes:
Add Date:	1980-01-01
Date Edited:	2022-06-08

Ecology and Life History

Lifeform: annual herb

Blooming Period: May-Jul(Aug)

Elevation:
150 - 800 meters
490 - 2625 feet

General Habitats:

Chaparral
Valley and foothill grassland

Microhabitat Details:

Microhabitat:

Serpentine

Notes

Notes: Known only from the Mt. Tamalpais area. Threatened by trampling and non-native plants. Possibly threatened by browsing. See Systematic Botany 19(4):557-574 (1994) for discussion of S. glandulosus complex.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	9
	Total EOs	% of EOs
EOs with Threat Listed:	11	46 %
Non-native plant impacts	6	25%
Grazing	3	12%
Foot traffic/trampling	2	8%
Other	2	8%
Recreational use (non-ORV)	1	4%
Road/trail construction/maint.	1	4%
Wood cutting or brush clearing	1	4%
Dam/Inundation	1	4%
Erosion/runoff	1	4%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					24
A	B	C	D	X	U
4	5	0	0	0	15

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

Presence:
Presumed Extant	24
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
California (CA)

California Counties and Islands: Name (Code)
Marin (MRN)

Quads: Name (Quad Code)
Bolinas (3712286), Inverness (3812217), Novato (3812215), San Geronimo (3812216), San Rafael (3712285)

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