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knife acacia

Scientific Name: Acacia cultriformis

Family: Fabaceae

Category: Dicot

Growth:

Duration:

Other Names:

       

Knife-leaf Wattle (Acacia cultriformis)

Acacia cultriformis, commonly known as knife-leaf wattle, dogtooth wattle, half-moon wattle, or golden-glow wattle, is an evergreen shrub or small tree native to Australia.

Considerations for Pets

  • This plant has leaves that are described as having a rough texture.

Considerations for Children

  • This plant has leaves that are described as having a rough texture.

Taxonomy and Nomenclature

  • Scientific Name: Acacia cultriformis A. Cunn. ex G. Don
  • Family: Fabaceae (Pea Family)
  • Synonym: Acacia cultriformis A. Cunn. ex G. Don var. albicans hort. ex Chopinet

Common Names

  • Knife-leaf wattle
  • Dogtooth wattle
  • Half-moon wattle
  • Golden-glow wattle
  • Knife acacia
  • Knifeleaf acacia

Distribution and Habitat

  • Native to Australia.
  • Specifically mentioned as originating from Southeastern Australia and New South Wales (NSW) and Queensland (Qld).
  • Thrives in most soils in mild winter areas.

Ecological Role

  • The Knife-leaved wattle (Acacia cultriformis) is regarded as an environmental weed in some regions.

Morphological Characteristics

  • Evergreen shrub, growing up to 4 meters (approximately 13 feet) tall and 10-15 feet wide.
  • Displays droopy branches densely covered with small, silvery leaves.
  • Leaves are unusual triangular shape, like knife blade or shark fin, with no petiole (phyllodium), rough texture, and off-green color. Described as shaped like the end of a paring knife, approximately 1 inch long, and silvery gray in color.
  • Golden yellow ball-shaped flowers bloom in late winter to early spring (February to May). Flowers appear on the terminal end of branches.
  • Exhibits an arching growth habit.

Growth Habits

  • Fast-growing.
  • Slow growth rate.
  • Hardy to zone (UK) 8.
  • In leaf from January 12th.

Further Information

  • RHS (Royal Horticultural Society): Provides help and information on Acacia cultriformis.
  • ILDIS World Database of Legumes is mentioned as a source database.