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Photo Credit: Forest & Kim Starr

image description

Photo Credit: Forest & Kim Starr

image description

Photo Credit: Forest & Kim Starr

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QUICK FACTS

  • HPRWA SCORE 21
  • FAMILY Buddlejaceae
  • CATEGORY Shrubs, Vines, & Others

butterfly bush (Buddleja madagascariensis)

An aggressive shrub that forms dense stands. 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 sprawling shrub up to 9 ft tall
  • Gray-green leaves 3 - 5 in long
  • Clusters of small, orange, fragrant flowers (up to 10 in long); white fleshy fruit becomes purple at maturity
  • Present on Kaua`i, O`ahu, Maui, and Big Island; native to Madagascar
  • Seeds spread by birds

Harm

  • Aggressive invader of disturbed areas at mid to low elevation, including open range, stream beds, and gulches
  • Forms dense strands that crowd out and compete with native plants
  • Plant produces numerous fruits that are attractive to birds, which spread the seeds far

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