Blackberries (Rubus spp.) — dark purple, sweet-tart fruits high in vitamins and disease-fighting compounds -- are protected by thorny canes that twist into impenetrable brambles when left unattended.

Blackberries. The people of Eugene seem to be divided on the subject. Some love strolling through back alleys and parks during the summer picking ripe fruit off their bushes. Others loathe the sight ...