Parthenocissus tricuspidata
Common name: 
Boston Ivy
Japanese Creeper
Japanese Parthenocissus
par-then-o-SIS-us tri-kus-pi-DAH-ta
Native to (or naturalized in) Oregon: 
  • Deciduous vine, 30-40 ft (9-12 m).  Leaves alternate, simple, 5-10 cm wide, 3-lobed, (tricuspidata: three pointed, the leaves), acuminate and coarsely serrated lobes, (smaller leaves may have 3 leaflets), glossy dark green in summer, turning red and scarlet in fall.  Short tendrils with terminal adhesive disks.  Flowers are inconspicuous, greenish, in globose clusters. Fruit are bluish black berries.
  • Sun to full shade.  Withstands trying city conditions
  • Hardy to USDA Zone 4     Native to central China, Japan
  • Corvallis: excellent specimen on wall at northwest corner of Walnut Blvd. and Rolling Green Dr.; also on the wall of the parking lot at Jackson Ave. and 21st St.
Click image to enlarge
  • plant habit, on a wall

    plant habit, on a wall

  • leaves, summer

    leaves, summer

  • leaves and immature fruit

    leaves and immature fruit

  • plant habit, fall

    plant habit, fall

  • leaves, fall

    leaves, fall

  • plant habit, late fall

    plant habit, late fall

  • leaf, late fall

    leaf, late fall

  • fruit on wall, winter

    fruit on wall, winter