Rubus: Berries and Brambles found throughout the Arboretum

Image of cuttings as examples of species described below.
Selected Rubus cuttings from the Washington Park Arboretum, July 22 – August 2, 2019

1)  Rubus armeniacus, Himalayan blackberry

  • This notorious invasive species was introduced to Washington in the late 1800s for its delicious and prolific berries.
  • It is often found in disturbed areas and has adapted to wet, dry, sunny, and shady conditions.

2)  Rubus leucodermis, blackcap raspberry

  • This species, native to the West Coast, is known for the dusty white/blue coating on older stems and its arching habit.
  • It can be found in meadows, open woodlands, and the forest edge.

3)  Rubus nutkanus, thimbleberry

  • This species, native to western North America, has small, white flowers; no thorns; and fuzzy, palmate leaves.
  • Its bright red berries look like a thimble from above, hence the name thimbleberry.

4)  Rubus spectabalis, salmonberry

  • This Pacific Northwest native species prefers wetter conditions including streambanks and wetlands but can be found in many conditions.
  • It can be identified by its orange to yellow berries and its trifoliate leaves (if you bend the top leaflet back, the bottom two leaftlets look like butterfly wings).

5)  Rubus ursinus, trailing blackberry

  • This species, native to the Pacific Northwest, has slender stems and a low, creeping habit.
  • It can be found in open meadows, dense forests, and disturbed areas.