Smooth Tarweed / Center For Plant Conservation
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Plant Profile

Smooth Tarweed (Centromadia pungens ssp. laevis)

  • Global Rank: T2 - Imperiled
  • Legal Status: N/A
  • Family: Asteraceae
  • State: CA
  • Nature Serve ID: 161765
  • Lifeform: Forb/herb
  • Date Inducted in National Collection:

Where is Smooth Tarweed (Centromadia pungens ssp. laevis) located in the wild?

States & Provinces:

Smooth Tarweed can be found in California

Which CPC Partners conserve Smooth Tarweed (Centromadia pungens ssp. laevis)?

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
  • Orthodox Seed Banking

Based on an September 2020 extract of the California Plant Rescue Database, California Botanic Garden holds 11 accessions of Centromadia pungens subsp. laevis in orthodox seed collection. There are as many as 167220 seeds of this species in their collection - although some may have been used for curation testing or sent to back up.

  • 08/05/2020
  • Seed Collection

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

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Taxon Centromadia pungens ssp. laevis
Authority (D.D. Keck) B.G. Baldw.
Family Asteraceae
CPC Number 9413
ITIS 780719
Duration Annual
Common Names Smooth Tarweed | common tarweed
Associated Scientific Names Hemizonia laevis | Hemizonia pungens subsp. laevis | Centromadia pungens ssp. laevis
State Rank
State State Rank
California S2
Ecological Relationships


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