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  Arenga australasica (H.Wendl. & Drude) S.T.Blake ex H.E.Moore
  Family Name : Arecaceae (Palmae)

  Synonyms : Normanbya australasica

  Common Names : Australian Arenga Palm

 
Australian Arenga Palm
  • Record Info
  • Life Stage & Characteristics
    • Plant Growth Form :
      Palm (Cluster Palm)
      Plant Shape :
      Fountain (Palm-like)
  • Biogeography
    • Native Distribution :
      Along the coast in the northern part of Australia
      Native Habitat :
      Shoreline
      Preferred Climate Zone :
      Highland / Montane
      Local Conservation Status :
      Exotic
  • Description & Ethnobotany
    • Plant Morphology :
      Growth Form: Clump-forming palm with 1-3 dominant trunks. It produces numerous suckers at the base.
      Foliage: Large pinnately compound leaves are 2-3.5 m long and supported by a 1.6 m long petiole.  The narrowly linear leaflets (1 m long, 7 cm wide) are glossy dark green on top and grayish below. The leaflet tip is slightly notched.
      Flowers: Flowers are small and yellow (1 cm wide), Only the lowermost inflorescence produces fruit.
      Fruits: Round, globular fruits (2 cm wide) are red, purple or brown at maturity. Each fruit produces 1-3 seeds which have a hard, smooth coat. The seeds are covered in juicy flesh that contains skin-irritating crystals known as calcium oxalate. The crystals cause intense itchiness that lasts for hours.
      Habitat :
      This species is endemic to Australia. It is found along the coast in the northern part of Australia. It is uncommon on the mainland, but common in some, nearby offshore islands.
      Cultivation :
      This species grows best in sandy, well-drained soil.
      Ethnobotanical Uses :
      None
  • Landscaping Features
    • Plant & Rootzone Preference/Tolerance :
      Well-Drained Soils, Saline Soils / Salt Spray
      Landscape Uses :
      Coastal, Beachfront / Shoreline
      Usage Hazards / Cons :
      [Remarks] (Fleshy tissue wrapped around the seeds causes intense itchiness upon contact which lasts for hours.)
  • Plant Care & Propagation
    • Light Preference :
      Semi-Shade
      Water Preference :
      Lots of Water
  • Floral (Angiosperm)
    • Flower & Plant Sexuality :
      Bisexual Flowers
      Flower Colour(s) :
      Yellow / Golden
      Flower Size :
      1 cm
  • Fruit, Seed & Spore
    • Mature Fruit Colour(s) [Angiosperms & Gymnosperms] :
      Brown, Purple, Red
      Mature Seed Texture(s) :
      Smooth
      Seed Quantity per Fruit :
      Few (1-5)
  • References

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