Search / Plant Profile / Streptanthus glandulosus ssp. niger

Plant Profile

Tiburon Jewelflower (Streptanthus glandulosus ssp. niger)

Global Rank: T1 - Critically Imperiled
Legal Status: Federally Endangered
Family: Brassicaceae
State: CA
Nature Serve ID: 141649
Lifeform: Forb/herb
Date Inducted in National Collection:

Description:

annual herb

Where is Tiburon Jewelflower (Streptanthus glandulosus ssp. niger) located in the wild?

Habitat:

shallow rocky serpentine soils on slopes of the southern Tiburon Peninsula at elevations of approximately 350 ft.

Distribution:

States & Provinces:

Tiburon Jewelflower can be found in California

Which CPC Partners conserve Tiburon Jewelflower (Streptanthus glandulosus ssp. niger)?

California Botanic Garden

Not Sponsored

Conservation Actions

Assigned 06/09/17

CPC's Plant Sponsorship Program provides long term stewardship of rare plants in our National Collection. We are so grateful for all our donors who have made the Plant Sponsorship Program so successful. We are in the process of acknowledging all our wonderful plant sponsorship donors on our website. This is a work in progress and will be updated regularly.

Conservation Actions

09/01/2020

Based on an September 2020 extract of the California Plant Rescue Database, University of California Botanical Garden holds 4 accessions of Streptanthus glandulosus subsp. niger in orthodox seed collection. There are as many as 7316 seeds of this species in their collection - although some may have been used for curation testing or sent to back up.

09/01/2020

Based on an September 2020 extract of the California Plant Rescue Database, California Botanic Garden holds 3 accessions of Streptanthus glandulosus subsp. niger in orthodox seed collection. There are as many as 28817 seeds of this species in their collection - although some may have been used for curation testing or sent to back up.

08/05/2020

Based on an August 2020 extract of the California Plant Rescue Database, University of California Botanical Garden has collected 4 seed accessions of Streptanthus glandulosus subsp. niger from 3 plant occurrences listed in the California Natural Diversity Database. These collections together emcompass 66 maternal plants

01/01/2010

residential development, pedestrian traffic, urbanization, invasion of non-natives and road construction

01/01/2010

2 populations on the Tiburon Peninsula of Marin Co.