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chaparral false bindweed

Scientific Name: Calystegia occidentalis ssp. occidentalis var. tom

Family: Convolvulaceae

Category: Dicot

Growth: Vine, Forb/herb

Duration: Perennial

Other Names:

       

Chaparral False Bindweed

Learn about Calystegia occidentalis, a fascinating plant also known as Chaparral False Bindweed.

Considerations for Pets and Children

  • This plant is a vine and can grow extensively, potentially becoming a climbing hazard.
  • As a member of the morning glory family (Convolvulaceae), it may contain compounds that could cause mild gastrointestinal upset if ingested.

Scientific Classification

  • Scientific Name: Calystegia occidentalis (A. Gray) Brummitt
  • Common Name: Chaparral False Bindweed
  • Family: Convolvulaceae (Morning Glory Family)
  • Kingdom: (Implied: Plantae - based on being a plant)
  • Taxonomic Rank: Species
  • Subspecies:
    • Calystegia occidentalis subsp. occidentalis (A. Gray) Brummitt
    • Calystegia occidentalis subsp. fulcrata (A. Gray) Brummitt
    • Calystegia occidentalis subsp. tomentella
  • Synonyms: Calystegia fulcrata (A. Gray) Brummitt
  • Alternative Common Names: Nightblooming False Bindweed, Coast Range False Bindweed, Hillside Morning Glory, Bush Morning Glory, Western Morning Glory, Pacific False Bindweed (though this may more accurately refer to *Calystegia purpurata*)

Distribution and Habitat

  • Native to California and Oregon.
  • Found on dry slopes, chaparral, and pine woodlands.
  • Also found in coastal bluffs and valleys below 1,000 feet.
  • Can be found in interior chaparral habitats.

Morphological Characteristics and Growth Habits

  • Vine, Forb/herb.
  • Perennial duration.
  • Grows in height and width, sometimes giving the appearance of a rounded shrub.
  • Evergreen during summer.
  • Leaves: Triangular.

Ecological Role

  • Often found in chaparral and coastal sage scrub, especially in disturbed openings.

Quirky Facts

  • One source states, "I’ve loved this flower since I was a kid."

Related Species

  • Mentioned in relation to other Calystegia species such as:
    • Calystegia macounii (Macoun's False Bindweed)
    • Calystegia spithamaea (Low False Bindweed)
    • Calystegia longipes (Paiute False Bindweed)
    • Calystegia purpurata (Purplish Morning Glory, Pacific False Bindweed)
    • Calystegia sepium (Hedge False Bindweed)
    • Calystegia affinis
    • Calystegia atriplicifolia (Nightblooming False Bindweed)
    • Calystegia malacophylla

Further Information

  • Discover Life: Provides information about the biology, natural history, ecology, identification, and distribution of Calystegia occidentalis.
  • Saint Mary's College of California: Involved in documenting Calystegia occidentalis.
  • USDA: Referenced in connection to this species.