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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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