image description

Photo Credit: Forest & Kim Starr

image description

Photo Credit: Forest & Kim Starr

image description

Photo Credit: Forest & Kim Starr

image description

Photo Credit: KISC

image description

Photo Credit: Jimmy Parker

QUICK FACTS

  • FAMILY Rosaceae
  • CATEGORY Shrubs, Vines, & Others

all non-native species of raspberry and blackberry (Rubus)

Rubus argutus, Rubus ellipticus, Rubus niveus, and Rubus sieboldii 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 all Rubus species as one of Hawai`i's Most Invasive Horticultural Plants.

  • Erect or arching shrubs with thorny stems
  • Leaf shape varies among species though all Rubus species have serrated leaves
  • Fruits vary among species: red or yellow raspberries, blackberries, and thimbleberries
  • Out of the hundreds of Rubus species in the world 7 non-native species are known present or naturalized in Hawai`i
  • Spread far by fruit eating birds or mammals

Harm

  • Invades disturbed and undisturbed forests, open fields, and fresh water habitats
  • Forms dense, impenetrable thickets crowding out native plants
  • Thickets also make access difficult for hunters, hikers, and other visitors to the forest

Plant these Instead