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  Acacia auriculiformis A. Cunn. ex Benth.
  Family Name : Fabaceae (Leguminosae)

  Common Names : Acacia-tree, Earleaf Acacia, Black Wattle, Wattle, Bunga Siam, Akasia Kuning, Yellow Wattle, Ear-pod Wattle, Northern Black Wattle, Papua Wattle

  Chinese Name : 大叶相思, 耳叶相思

Acacia-tree,Earleaf Acacia,Black Wattle,Wattle,Bunga Siam,Akasia Kuning,Yellow Wattle,Ear-pod Wattle,Northern Black Wattle,Papua Wattle
  • Record Info
    • Featured in '1001 Garden Plants in Singapore' Book (2ed) :
  • Life Stage & Characteristics
    • Plant Division :
      Angiosperms (Flowering Seed Plants)
      Plant Growth Form :
      Tree (Medium (16m-30m))
      Lifespan (in Singapore) :
      Mode of Nutrition :
      Plant Shape :
      Maximum Height :
      30 m
  • Biogeography
    • Native Distribution :
      Indonesia, New Guinea, Northern Australia
      Preferred Climate Zone :
  • Description & Ethnobotany
    • Plant Morphology :
      [Others]: Tree only has leaves at seedling stage. Leaves reduced to flattened leaf stalks called phyllodes, an adaptation to drought and hot climate. Phyllodes are green and serve as leaves. Grown on wastelands as it contains nitrogen-fixing bacteria which can rejuvenate soils poor in nutrients. Prevents soil erosion due to extensive dense roots and heavy leaf litter. Popularity waning in Singapore due to large amount of fallen leaves.
      Ethnobotanical Uses :
      Food (Herb & Spice)
      Medicinal, Timber & Products
      [Others]: Ornamental plant which is also used for charcoal. Root decoction used to treat aches, pains and sore eyes. Bark infusion used to treat rheumatism.
  • Landscaping Features
    • Desirable Plant Features :
      Ornamental Flowers, Fragrant (Flowers: Day)
      Plant & Rootzone Preference/Tolerance :
      Dry Soils / Drought, Waterlogged Soils (Drains Site), Saline Soils / Salt Spray, Poor Infertile Soils, Alkaline (high pH) Soils, Disease / Pest Resistant
      Landscape Uses :
      General, Coastal, Shade Providing Tree / Palm
  • Fauna, Pollination & Dispersal
    • Associated Fauna :
      Pollination Method(s) :
      Biotic (Fauna) (Insects (Butterfly, Moth); Insects (Bee); Insects (Ant, Beetle, Fly, Thrip, Wasp))
      Seed / Spore Dispersal :
      Biotic (Fauna) (Associated with: Seeds are eaten and dispersed by birds.), Abiotic (Explosive Dehiscence)
  • Plant Care & Propagation
    • Light Preference :
      Full Sun
      Water Preference :
      Moderate Water
      Plant Growth Rate :
      Planting Distance :
      2.5 m
      Maintenance Requirements :
      Diseases :
      No major problems except for insect and nematode attacks on seedlings.
      Pest(s) :
      Associated with
      Propagation Method :
      Seed, Stem Cutting
  • Foliar
    • Foliage Retention :
      Mature Foliage Colour(s) :
      Mature Foliage Texture(s) :
      Raised / Sunken Veins
      Foliar Modification :
      Reduced / Needle-like
      Foliar Type :
      Simple / Unifoliate
      Foliar Shape(s) :
      Non-Palm Foliage (Elliptical; Falcate / Curved)
      Foliar Venation :
      Foliar Margin :
      Foliar Apex / Tip :
      Typical Foliar Area :
      Notophyll ( 20.25cm2 - 45 cm2 )
      Leaf Area Index (LAI) * for Green Plot Ratio :
      3.0 (Tree - Intermediate Canopy)
  • Non-Foliar & Storage
    • Trunk Type (Non-Palm) :
      Stem Type & Modification :
      Woody, Cladode
  • Floral (Angiosperm)
    • Flower & Plant Sexuality :
      Bisexual Flowers
      Flower Colour(s) :
      Yellow / Golden
      Inflorescence Type :
      Flowering Period :
      Flowering Habit :
  • Fruit, Seed & Spore
    • Mature Fruit Colour(s) [Angiosperms & Gymnosperms] :
      Fruit Classification :
      Simple Fruit
      Fruit Type :
      Dehiscent Dry Fruit (Legume / Pod)
The information given on this website has been compiled from reference works on medicinal plants and/or pron only. It is not a substitute for medical advice or treatment and NParks does not purport to provide any medical advice. Reliance on this information is strictly at your own risk. You should always consult your physician before using or consuming a plant for medicinal purposes.

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