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  Guettarda speciosa L.
  Family Name : Rubiaceae

  Common Names : Sea Randa, Selar Makan, Baru-Baru Laut, Bebaru Laut, Beach Gardenia, Zebra Wood, Ketapang Pasir

  Chinese Name : 海岸桐, 榄仁舅

Sea Randa,Selar Makan,Baru-Baru Laut,Bebaru Laut,Beach Gardenia,Zebra Wood,Ketapang Pasir
  • Record Info
  • Life Stage & Characteristics
    • Plant Division :
      Angiosperms (Flowering Seed Plants) (Dicotyledon)
      Plant Growth Form :
      Tree (Medium (16m-30m); Shrubby (1m-5m); Small (6m-15m))
      Lifespan (in Singapore) :
      Mode of Nutrition :
      Plant Shape :
      Maximum Height :
      3 m to 22 m
  • Biogeography
    • Native Distribution :
      East Africa, tropical Asia (including Singapore), and Polynesia
      Native Habitat :
      Terrestrial (Coastal Forest), Shoreline (Sandy Beach; Rocky Beach)
      Preferred Climate Zone :
      Local Conservation Status :
      Native to Singapore (Endangered (EN))
  • Description & Ethnobotany
    • Plant Morphology :
      Growth Form: It is a tree up to 22 m tall.
      Crown: Crown rounded and sprawling.
      Foliage: Its opposite, stalked leaves have leaf blades that are somewhat drop-shaped, with a small tip, yellowish-green, hairless to covered with hair below, and 10–25 by 7.6–18 cm.
      Flowers: Its flowers are white, 1.1–3.2 cm wide, with yellowish tubes that are 3.8–5 cm long, fragrant, and found in 3.8–11 cm long flowering clusters. Its flowers open about an hour after sunset and the whorl of petals drop off the next morning.
      Fruits: Its fruits are faintly and closely ribbed, green then whitish or pinkish, and 2.2–3.2 cm across.
      Habitat :
      It grows on sandy and rocky shores. It occurs locally in Pulau Semakau, Pulau Ubin, and Pulau Unum.
      Associated Fauna :
      Its flowers are pollinated by insects.
      Cultivation :
      It can be propagated by seed.
      Etymology :
      Guettarda, commemorating the 18th century French botanist, J. E. Guettard; Latin speciosa, showy.
      Ethnobotanical Uses :
      Medicinal (The bark is used to treat chronic dysentery and can be applied to wounds when there are symptoms of inflammation, such as the collection of pus around the damaged tissue.), Timber & Products (The wood is used for building houses.), Cut / Dried Flower (Its fragrant flowers are used by girls who put them in their hair for the fragrance, string them into necklaces, and used them to prepare essential oil or perfume.)
      [Others]: It is cultivated as an ornamental plant.  The bark is used to treat chronic dysentery and can be applied to wounds when there are symptoms of inflammation, such as the collection of pus around the damaged tissue. 
  • Landscaping Features
    • Landscaping :
      It is suitable for parks and roadsides as it has fragrant flowers and can tolerate hot, sunny, windy, and frequent salt spray conditions.
      Desirable Plant Features :
      Ornamental Flowers, Fragrant (Flowers)
      Plant & Rootzone Preference/Tolerance :
      Dry Soils / Drought, Well-Drained Soils, Saline Soils / Salt Spray
      Landscape Uses :
      General, Roadside Tree / Palm, Parks & Gardens, Small Gardens, Coastal, Beachfront / Shoreline
      Thematic Landscaping :
      Fragrant / Aromatherapy Garden
  • Fauna, Pollination & Dispersal
    • Pollination Method(s) :
      Biotic (Fauna)
      Seed / Spore Dispersal :
      Abiotic (Water)
  • Plant Care & Propagation
    • Light Preference :
      Full Sun
      Water Preference :
      Moderate Water
      Plant Growth Rate :
      Maintenance Requirements :
      Propagation Method :
  • Foliar
    • Foliage Retention :
      Mature Foliage Colour(s) :
      Foliar Type :
      Simple / Unifoliate
      Foliar Arrangement Along Stem :
      Foliar Attachment to Stem :
      Foliar Shape(s) :
      Non-Palm Foliage (Obovate)
      Foliar Venation :
      Pinnate / Net
      Foliar Margin :
      Leaf Area Index (LAI) * for Green Plot Ratio :
      3.0 (Tree - Intermediate Canopy)
  • Floral (Angiosperm)
    • Flower & Plant Sexuality :
      Bisexual Flowers
      Flower Colour(s) :
      Flower Grouping :
      Cluster / Inflorescence
      Flower Symmetry :
      Individual Flower Shape :
  • Fruit, Seed & Spore
    • Mature Fruit Colour(s) [Angiosperms & Gymnosperms] :
      Brown, Green - Light Green
      Fruit Classification :
      Simple Fruit
      Fruit Type :
      Fleshy Fruit (Non-Accessory Fruit: Berry)
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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