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  Bauhinia x blakeana Dunn
  Family Name : Fabaceae (Leguminosae)

  Synonyms : Bauhinia ''Blakeana''

  Common Names : Blake's Bauhinia, Hong Kong Orchid Tree, Hong Kong Bauhinia, Butterfly Tree

  Chinese Name : 红花羊碲甲, 洋艳紫荆

 
Blake's Bauhinia,Hong Kong Orchid Tree,Hong Kong Bauhinia,Butterfly Tree
  • 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 :
      Tree (Small (6m-15m))
      Lifespan (in Singapore) :
      Perennial
      Mode of Nutrition :
      Autotrophic
      Plant Shape :
      Irregular, Open
      Maximum Height :
      6 m to 10 m
  • Biogeography
    • Native Distribution :
      China, Hong Kong, India
      Preferred Climate Zone :
      Sub-Tropical / Monsoonal
  • Description & Ethnobotany
    • Plant Morphology :
      Growth Form: Tree, 6 - 10m height. Crown open, irregular, with sparse branching. 
      Crown: Crown may look untidy when tree sheds leaves after flowering. 
      Foliage: Leaves light green, bi-lobed, resembling butterfly wings, semi-deciduous. 
      Flowers: Flowers large (15cm across), showy, deep pink, fragrant, with 5-6 stamens (distinguishing it from similar-looking Bauhinia purpurea which has 3-4 stamens).
      Fruits: Fruits not observed, as flowers are sterile.
      [Others]: Hybrid of Bauhnia purpurea (female parent) and Bauhinia variegata, but can only be perpetuated by horticultural practices (eg. grafting), hence validated as horticultural cultivar. 
      Cultivation :
      Likes fertile, well-drained, acidic soils. Alkaline soils may cause interveinal chlorosis in leaves. Highly drought-tolerant when established. Grown in small gardens, open spaces and parks for attractive leaves and flowers. Long season (4 months) of intense flowering observed in sub-tropical regions, but not apparent in Singapore due to lack of seasonality. 
      Etymology :
      Genus 'Bauhinia' named after 16th century Swiss botanists and brothers, John and Caspar Bauhin. Twin lobes of tree's leaves said to represent the 2 brothers. Official flora emblem of Hong Kong and displayed on state flag. 
      Ethnobotanical Uses :
      Cut / Dried Flower
      [Others]: Blooms can be used as cut flowers and in flower arrangements.
  • Landscaping Features
    • Desirable Plant Features :
      Ornamental Flowers, Ornamental Foliage, Fragrant (Flowers: Day, Time Independent)
      Plant & Rootzone Preference/Tolerance :
      Dry Soils / Drought, Well-Drained Soils, Fertile Loamy Soils, Acidic (low pH) Soils, Easy to Grow
      Landscape Uses :
      General, Roadside Tree / Palm
      Thematic Landscaping :
      Naturalistic Garden
  • Fauna, Pollination & Dispersal
    • Associated Fauna :
      Bird-Attracting
      Seed / Spore Dispersal :
      Biotic (Fauna) (Associated with: Plant is a sterile hybrid, and seldom produces seedpods.)
  • Plant Care & Propagation
    • Light Preference :
      Full Sun
      Water Preference :
      Moderate Water
      Plant Growth Rate :
      Fast
      Maintenance Requirements :
      Moderate
      Pruning :
      Prune for good form and remove crossing branches.
      Diseases :
      Leaves may from interveinal chlorosis if plant is grown in alkaline soils.
      Pest(s) :
      Associated with
      Propagation Method :
      Grafting, [Remarks] (Plant is sterile and produces no seedpods, so it can only be perpetuated by propagation like grafting (but not cuttings).)
  • Foliar
    • Foliage Retention :
      Drought / Semi-Deciduous
      Mature Foliage Colour(s) :
      Green
      Mature Foliage Texture(s) :
      Smooth
      Foliar Type :
      Simple / Unifoliate
      Foliar Arrangement Along Stem :
      Alternate
      Foliar Shape(s) :
      Non-Palm Foliage (Ovate)
      Foliar Venation :
      Dichotomous
      Foliar Margin :
      Entire
      Foliar Apex / Tip :
      Emarginate
      Foliar Base :
      Cordate
      Typical Foliar Area :
      Notophyll ( 20.25cm2 - 45 cm2 )
      Leaf Area Index (LAI) * for Green Plot Ratio :
      2.5 (Tree - Open Canopy)
  • Non-Foliar & Storage
    • Trunk Type (Non-Palm) :
      Woody
      Bark Colour(s) :
      Yellowish-grey
      Mature Bark Texture :
      Smooth, Scaly
      Stem Type & Modification :
      Woody
      Root Type :
      Underground (Tap Root; Fibrous Root)
  • Floral (Angiosperm)
    • Flower & Plant Sexuality :
      Bisexual Flowers
      Flower Colour(s) :
      Pink
      Flower Symmetry :
      Bilateral
      Flower Size :
      Remarks (Large, showy, 15cm across.)
      Flowering Opening Time :
      Time-Independent
      Flowering Habit :
      Polycarpic
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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