vaccinium vitis-idaea, the lingonberry, partridgeberry, mountain cranberry or cowberry, is a small evergreen shrub in the heath fa

asc asclepiadea blueflowering botanical botany cowberry cranberry ericaceae europen evergreen family flora flowering gentian gentiana gentianaceae heath herb illustration lingonberry mediumtall mountain nature partridgeberry plant shrub small species vaccinium vitisidaea willow