Community Scientists Survey & Assess Invasive Blackberry Species
Blackberry thickets are a prominent (and prickly) feature of many Pacific Northwest natural areas including at Hoyt Arboretum and many other Portland Parks. The most common species of exotic blackberry in our region is widely accepted as Rubus armeniacus (AKA Himalayan or Armenian blackberry), but there are a couple of other exotic Rubus spp. that … Read more