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pinnate dahlia

Scientific Name: Dahlia pinnata

Family: Asteraceae

Category: Dicot

Growth: Forb/herb

Duration: Perennial

Other Names:

       

Dahlia pinnata: The Pinnate Dahlia

Dahlia pinnata, commonly known as the pinnate dahlia, is a perennial plant that brings a touch of vibrant color to gardens. Let's explore its characteristics, history, and more.

Taxonomy and Nomenclature

  • Scientific Name: Dahlia pinnata Cav.
  • Common Name: Pinnate Dahlia
  • Kingdom: Plantae
  • Taxonomic Rank: Species
  • Synonyms:
    • Dahlia rosea Cav.
    • Dahlia variabilis
    • Bidens variabilis
    • Coreopsis georgina
    • Dahlia astrantiaeflora

Morphological Characteristics and Growth Habits

  • Dahlia pinnata is a perennial plant, reaching a height of approximately 1 meter (3 feet 3 inches).
  • The leaves are opposite (two per stem node) and odd pinnate, meaning the leaflets are arranged along a central stalk with a single leaflet at the tip. Leaflets are elliptical.
  • Flowers bloom from June to October.
  • The plant is grown from divisions of tuberous roots and cuttings to preserve unique characteristics or from seed.
  • Leaves can be different shades of green with serrated edges.

Distribution and Habitat

  • Dahlia pinnata is native to upland southern Mexico.

Additional Information

  • Hardy to zone (UK) 9 but frost tender.
  • Pollinated by Insects and Lepidoptera

Quirky Facts

  • The first Dahlia plant was named Dahlia pinnata because of its pinnate foliage.
  • In flower language, the pinnate dahlia has a specific meaning.
  • The plant was named "Dahlia" in 1791 for Anders Dahl.