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Pacific false bindweed

Scientific Name: Calystegia purpurata ssp. purpurata

Family: Convolvulaceae

Category: Dicot

Growth: Vine, Forb/herb

Duration: Perennial

Other Names:

       

Calystegia purpurata: Pacific False Bindweed

Calystegia purpurata, commonly known as Pacific false bindweed, is a species of morning glory found in the western United States. It is also sometimes referred to as Smooth Western Morning Glory or Purple Western Morning Glory. The name "false bindweed" is used to distinguish it from true bindweeds in the genus Convolvulus.

Taxonomy and Nomenclature

  • Scientific Name: Calystegia purpurata (Greene) Brummitt
  • Common Names: Pacific false bindweed, Smooth Western Morning Glory, Purple Western Morning Glory, Western Morning-Glory
  • Family: Convolvulaceae (Morning Glory family)
  • Taxonomic Rank: Subspecies (e.g., Calystegia purpurata subsp. purpurata)
  • Synonym: Convolvulus occidentalis var. saxicola (Eastw.) J.T. Howell

Distribution and Habitat

  • Calystegia purpurata is endemic to California.
  • It is frequently found in coastal areas and locations like Santa Margarita, Leona Canyon Regional Open Space Preserve (Oakland, CA), and Topanga State Park.

Morphological Characteristics and Growth Habits

  • Calystegia purpurata is a perennial herbaceous vine with a twining growth habit.
  • It is rhizomatous, meaning it spreads via underground stems.
  • The 'Bolinas' variety is a vine that can grow to an average height of 10 feet and features pink blooms.
  • Its flowers and heart-like leaves show a close relationship to other morning glories.
  • It is described as evergreen during the summer.

Ecological Role

  • Some references indicate it deserves to be included, contrasting it with other bindweed species that might be considered less desirable in certain habitats.

Considerations for Pets

  • This plant is a vine, and vines can sometimes pose entanglement risks for small animals.

Other Calystegia Species Mentioned

  • Calystegia sepium (Large Bindweed)
  • Calystegia atriplicifolia (Nightblooming False Bindweed)
  • Calystegia macounii (Macoun's False Bindweed)
  • Calystegia spithamaea (Low False Bindweed)
  • Calystegia silvatica (Shortstalk false bindweed)
  • Calystegia affinis
  • Calystegia pellita (Hairy Bindweed)
  • Calystegia pubescens