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Photo Credit: Forest & Kim Starr

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Photo Credit: Forest & Kim Starr

image description

Photo Credit: Forest & Kim Starr

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Photo Credit: Matthias Neumann

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QUICK FACTS

  • HPRWA SCORE 10
  • FAMILY Melastomataceae
  • CATEGORY Shrubs, Vines, & Others

glory bush (Tibouchina urvilleana)

All 350 plants in the genus Tibouchina are on the Hawai`i State Noxious Weed List. The Division of Forestry and Wildlife of the Hawai`i Department of Land and Natural Resources has designated this species as one of Hawai`i's Most Invasive Horticultural Plants.

  • A branched shrub up to 12 ft tall
  • Hairy leaves (5 in long by 2 in wide) grow in an opposite pattern and have 5-7 prominent veins from the base
  • Large purple flowers (3-4 in) with 5 petals; small hairy cup-like fruit (1/2 in)
  • Present on Kaua`i, O`ahu, Maui, and Big Island; native to Southern Brazil
  • Spreads vegetatively and by seed

Harm

  • Forms dense thickets in disturbed forests
  • Outcompetes and displaces native plants
  • Spreads vegetatively forming impenetrable thickets

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