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  Otacanthus azureus
  Family Name : Scrophulariaceae

  Synonyms : Otacanthus caeruleus

  Common Names : Amazon Blue, Brazilian Snapdragon

 
Amazon Blue,Brazilian Snapdragon
  • Record Info
    • Featured in '1001 Garden Plants in Singapore' Book (2ed) :
      True
  • Life Stage & Characteristics
    • Plant Division :
      Angiosperms (Flowering Seed Plants) (Dicotyledon)
      Plant Growth Form :
      Shrub (Herbaceous)
      Lifespan (in Singapore) :
      Perennial
      Mode of Nutrition :
      Autotrophic
      Plant Shape :
      Shrubby
  • Biogeography
    • Native Distribution :
      Brazil
      Native Habitat :
      Terrestrial
      Preferred Climate Zone :
      Tropical
      Local Conservation Status :
      Exotic (Horticultural / Cultivated Only)
  • Description & Ethnobotany
    • Plant Morphology :
      Growth Form: Compact shrub, growing up to about 1.0 - 1.2 m tall.
      Foliage: Bright green, arranged oppositely along the stem. 
      Flowers: Purplish-blue flowers, measuring about 3.5 cm long and 2.5 cm wide, and having a characteristic of a large flat lower lip. Flowers are borne in clusters, called as spike, and located at the terminal end of plant. 
      Cultivation :
      Propagated via stem cutting. Pinch back to promote bushiness. Grows best under full sun. 
      Etymology :
      Genus Otacanthus comes from the Greek word "akanqoj", which means thorny ears.
      Species epithet azureus means sky-blue in Latin.
      Ethnobotanical Uses :
      Cut / Dried Flower
  • Landscaping Features
    • Desirable Plant Features :
      Ornamental Flowers, Fragrant
      Plant & Rootzone Preference/Tolerance :
      Moist Soils, Well-Drained Soils
      Landscape Uses :
      Parks & Gardens, Small Gardens, Groundcover
  • Plant Care & Propagation
    • Light Preference :
      Full Sun, Semi-Shade
      Water Preference :
      Moderate Water
      Propagation Method :
      Stem Cutting
  • Foliar
    • Foliage Retention :
      Evergreen
      Mature Foliage Colour(s) :
      Green
      Foliar Type :
      Simple / Unifoliate
      Foliar Arrangement Along Stem :
      Opposite
      Foliar Shape(s) :
      Non-Palm Foliage
      Foliar Margin :
      Serrate / Toothed
      Leaf Area Index (LAI) * for Green Plot Ratio :
      4.5 (Shrub & Groundcover - Dicot)
  • Floral (Angiosperm)
    • Flower Colour(s) :
      Blue, Purple
      FlowerTexture(s) :
      Smooth
      Flower Grouping :
      Cluster / Inflorescence
      Flower Location :
      Terminal
      Flower Symmetry :
      Bilateral
      Inflorescence Type :
      Spike
      Flowering Period :
      Free-Flowering

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