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Presidio clarkia

Scientific Name: Clarkia franciscana

Family: Onagraceae

Category: Dicot

Growth: Forb/herb

Duration: Annual

Other Names: CA (Presidio clarkia)

       

Presidio Clarkia (Clarkia franciscana)

Clarkia franciscana, commonly known as Presidio Clarkia, is a rare and endangered flowering plant belonging to the evening primrose family.

Considerations for Pets and Children

  • As a herbaceous plant, it's worth noting that ingestion of any plant material can cause mild gastrointestinal upset in some animals and children. Supervise pets and children in areas where this plant grows.

Taxonomy and Nomenclature

  • Scientific Name: Clarkia franciscana F.H Lewis & P.H. Raven
  • Common Name: Presidio Clarkia
  • Family: Onagraceae (evening-primrose family)
  • Taxonomic Class: Dicot
  • Synonyms: None explicitly mentioned, but note the variation in author attribution (F.H Lewis & P.H. Raven vs. Lewis & Raven).

Distribution and Habitat

  • Clarkia franciscana is endemic to California, specifically limited to two locations in the Bay Area: the Presidio in San Francisco and Redwood Regional Park and Lake Chabot Regional Park, Castro Valley California.
  • It's found in serpentine plant communities.
  • Habitat restoration projects aim to support its growth, including those at Inspiration Point and in Oakland.

Morphological Characteristics and Growth Habits

  • It is a slender, erect, herbaceous annual.
  • It can reach a height of up to 16 inches (40.6 cm).

Ecological Role and Conservation Status

  • The Presidio Clarkia is classified as endangered by both the U.S. Federal Government and the State of California.
  • Its populations have suffered from deforestation, non-native tree plantings, and building construction.
  • Efforts are underway to remove invasive species and restore its habitat.

Further Information

  • Additional information can be found on the National Park Service website: http://www.nps.gov/prsf/nathist1/nathist/clarkia.htm
  • Species Account from Sacramento Fish & Wildlife Office
  • Discover Life: Discover Life
  • Encyclopedia of Life