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San Francisco spineflower

Scientific Name: Chorizanthe cuspidata var. cuspidata

Family: Polygonaceae

Category: Dicot

Growth: Forb/herb

Duration: Annual

Other Names:

       

San Francisco Spineflower (Chorizanthe cuspidata)

The San Francisco spineflower, scientifically known as Chorizanthe cuspidata, is a fascinating plant species with several varieties and a unique ecological role. It is also referred to as San Francisco Bay spineflower.

Considerations for Pets

  • The plant is called Spineflower, and it is conceivable that it possesses spines.

Considerations for Children

  • The plant is called Spineflower, and it is conceivable that it possesses spines.

Taxonomy and Nomenclature

  • Family: Polygonaceae (Buckwheat Family)
  • Kingdom: Plantae
  • Taxonomic Rank: Variety (e.g., Chorizanthe cuspidata var. cuspidata, Chorizanthe cuspidata var. villosa, Chorizanthe cuspidata var. marginata)
  • Synonyms:
    • Chorizanthe cuspidata S. Watson
    • Chorizanthe pungens Bentham var. cuspidata (S. Watson) Parry

Distribution and Habitat

  • The San Francisco spineflower is endemic to California, particularly the San Francisco Bay Area.
  • Specifically found in parts of Marin, Sonoma, and Monterey counties.
  • It thrives in open sandy habitats and is an early colonizer of dunes.

Ecological Role

  • As an early dune colonizer, the San Francisco spineflower requires open, sandy habitat for establishment.

Morphological Characteristics

  • The stem is soft, hairy, and often prostrate (lying flat on the ground).
  • It is an annual herb.
  • Described as a "strange looking plant with little whitish flowers".

Interactions with Other Organisms

  • Mentioned in association with the San Bruno Elfin Butterfly.
  • Grows in the same habitat as the San Francisco wallflower.

Further Information

  • Discover Life offers a page about the biology, natural history, ecology, identification, and distribution of Chorizanthe cuspidata.