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  Euphorbia milii
  Family Name : Euphorbiaceae

  Synonyms : Euphorbia milii var. splendens, Euphorbia bojeri,, Euphorbia splendens var. bojeri, Euphorbia breonii, Euphorbia bojeri var. mucronulata, Euphorbia, Euphorbia splendens, Acalypha bojeri

  Common Names : Crown of Thorns, Christ Thorn, Christ Plant, Christ's Thorn

 
Crown of Thorns,Christ Thorn,Christ Plant,Christ's Thorn
  • 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 :
      Dwarf
  • Biogeography
    • Native Distribution :
      Western Madagascar
  • Description & Ethnobotany
    • Plant Morphology :
      Growth Form: A scrambling succulent, containing milky sap, multi-branched with spines all over branches.
      [Others]: Stem: Stems obscurely 3 to 5 angled, greyish-brown, covered with many prominent grey spines. Foliage: Leaves simple, alternate, obovate to oblong-oblanceolate, green, margin entire, 1.5 to 5 cm long, 0.8 to 1.8 cm wide, clustered near apical branches; stipules forming spines, 1 to 1.3 cm long; petiole absent or subsessile. Flower: Cyathia (inflorescences consisting of cuplike clusters of bracts enclosing unisexual flowers) in subapical, dichasial (having two lateral flowers originating from opposite points beneath a terminal flower) cymes; each cluster bears 2 bright red (pink, white or yellow in some cultivars), broadly ovate bracts beneath the miniscule flowers, up to 1.5 cm across; male flowers numerous in each cyathium, calyx, absent, corolla absent, stamen 1; female flowers 1 in each cyathium; calyx absent; corolla absent; pistil 1. Fruit Fruit capsule 3-lobed-ovoid, 3.5 mm long, 4 mm wide, smooth and glabrous; 1 seed per capsule; Seed ovoid-terete, 2.5 mm long, 2 mm wide, brown, reticulate (net-veined).
      Cultivation :
      Prefers well-drained soil that can be watered regularly and is moderately salt tolerant. Though very drought tolerant, regular watering will keep it from defoliating and encourages blooming. Prone to botrytis or powdery mildew when water collect on the leaves and flowers. Propagated by tip cuttings, whereby bleeding is stopped and allowed to dry and callus over a few days before inserting into propagation media. Rooting occurs in a few weeks.
      Etymology :
      The genus epithet ‘Euphorbia’ is derived from 'Euphorbus', the Greek physician to Juba II, King of Mauretania. Juba II was treated by a plant (probably the Resin Spurge, Euphorbia resinifera) with powerful medicinal properties, of which he named after his Greek physician 'Euphorbus'. The species epithet is named after Baron Milius, a former governor of the island of Bourbon, who introduced the species in France in 1821. Its common names like ‘Crowns of Thorns’, ‘ Christ Plant’ and ‘Christ’s Thorn’ were derived from the belief that during Jesus Christ’s crucifixion, the crown of thorns was made from the stems of this plant. Ironically, the stems of this plant are pliable and can be entwined into circular weavings. There was also substantial evidence that the species was brought to the Middle East before the time of Christ.
      Ethnobotanical Uses :
      None
  • Landscaping Features
    • Desirable Plant Features :
      Ornamental Flowers
      Plant & Rootzone Preference/Tolerance :
      Dry Soils / Drought, Well-Drained Soils, Saline Soils / Salt Spray, Poor Infertile Soils, Fertile Loamy Soils, Shallow Media (8 -10cm)
      Landscape Uses :
      General, Coastal, Green Roof, Interiorscape/ Indoor Plant, Container Planting
      Thematic Landscaping :
      Naturalistic Garden, Rockery / Desert Garden
      Usage Hazards / Cons :
      Spines/Thorns - Stem/Branch, Irritant - Sap
  • Plant Care & Propagation
    • Light Preference :
      Full Sun
      Water Preference :
      Little Water
      Propagation Method :
      Stem Cutting
  • Foliar
    • Foliage Retention :
      Evergreen
      Mature Foliage Colour(s) :
      Green
      Mature Foliage Texture(s) :
      Thin
      Foliar Modification :
      Spine (axillary)
      Foliar Type :
      Simple / Unifoliate
      Foliar Venation :
      Pinnate / Net
      Leaf Area Index (LAI) * for Green Plot Ratio :
      4.5 (Shrub & Groundcover - Dicot)
  • Non-Foliar & Storage
    • Root Type :
      Underground (Fibrous Root)
  • Floral (Angiosperm)
    • Flower & Plant Sexuality :
      Bisexual Flowers
      Flower Colour(s) :
      Pink, Red, Yellow / Golden
      Flowering Period :
      Free-Flowering
      Flowering Habit :
      Polycarpic

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