By Molly McCrea In a quiet neighborhood in Oakland, a backyard was abuzz with young people answering an urgent call to action. “This is essentially triage. We’re preserving these plants, which have as you can see. They’ve essentially been abandoned in bulk at a construction site, “said K.C Wassner. Rosetta Wang put out the appeal after she visited the UC Berkeley campus late last Friday afternoon. Wang, who is the founder of the Wild Harvest and…