Search / Plant Profile / Centromadia parryi ssp. australis

Plant Profile

Southern Tarweed (Centromadia parryi ssp. australis)

Global Rank: T2 - Imperiled
Legal Status: N/A
Family: Asteraceae
State: CA
Nature Serve ID: 128984
Lifeform: Forb/herb
Date Inducted in National Collection:

Description:

Also known as the Southern Tarweed, Centromadia parryi ssp. australis is an annual herb that is primarily found in Orange and Los Angeles counties. In these areas, it can be found in freshwater wetlands and seasonally moist grasslands including the Bolsa Chica Marsh in Orange County. The small yellow, ray florets that this species produces can be seen from May through November and can grow up to 70cm tall.

Where is Southern Tarweed (Centromadia parryi ssp. australis) located in the wild?

Habitat:

C. p. ssp. australis prefers wetland and grassland habitats that have seasonally moist periods and high salinity soil. This species thrives at sea level but can be seen at elevations as high as 200ft.

Distribution:

C. p. ssp. australis is primarily grown in Orange and Los Angeles counties but can found as north as Santa Barbara and as south as San Diego.

States & Provinces:

Southern Tarweed can be found in California

Which CPC Partners conserve Southern Tarweed (Centromadia parryi ssp. australis)?

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, Santa Barbara Botanic Garden holds 1 accessions of Centromadia parryi subsp. australis in orthodox seed collection. We are uncertain as to how many total seeds are in this collection.

09/01/2020

Based on an September 2020 extract of the California Plant Rescue Database, San Diego Zoo Global holds 1 accessions of Centromadia parryi subsp. australis in orthodox seed collection. We are uncertain as to how many total seeds are in this collection.

09/01/2020

Based on an September 2020 extract of the California Plant Rescue Database, California Botanic Garden holds 7 accessions of Centromadia parryi subsp. australis in orthodox seed collection. There are as many as 187696 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, San Diego Zoo Global has collected 1 seed accessions of Centromadia parryi subsp. australis from 1 plant occurrences listed in the California Natural Diversity Database. These collections together emcompass 101 maternal plants

08/05/2020

Based on an August 2020 extract of the California Plant Rescue Database, Santa Barbara Botanic Garden has collected 1 seed accessions of Centromadia parryi subsp. australis from 1 plant occurrences listed in the California Natural Diversity Database. These collections together emcompass 69 maternal plants

08/05/2020

Based on an August 2020 extract of the California Plant Rescue Database, California Botanic Garden has collected 2 seed accessions of Centromadia parryi subsp. australis from 1 plant occurrences listed in the California Natural Diversity Database. These collections together emcompass an unknown number of maternal plants