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The Cutleaf Evergreen Blackberry, Rubus laciniatus.
This invasive albeit with delicious fruit species is identified from the other introduced blackberry, R. armeniacus, by the leaves. E-Flora BC “Alternate, evergreen, palmately compound; leaflets 5, more or less egg-shaped in outline, deeply and jaggedly lobed to divided into secondary leaflets themselves jaggedly lobed or coarsely toothed, abruptly sharp-pointed at the tip, green and smooth or slightly hairy above, hairy and greyish-green beneath, the leaf-stalks and midveins beneath hooked-prickly; stipules linear.” For comparison, 
"Rubus laciniatus", the Cutleaf Evergreen Blackberry or Evergreen Blackberry, is a species of "Rubus" native to Europe. it is an introduced species in North America. It has become a weed and invasive species in forested habitats in the western and eastern United States.
