Linnaea borealis Linnaea borealis seeds with a mm ruler on the right. Linnaea borealis fruits with a mm ruler on the right. Linnaea borealis plant grown in 4-inch containers at the Berry Seed Bank research nursery located in Portland, Oregon. Linnaea borealis with rootball for plant grown in a 4-inch container at the Berry Seed Bank research nursery located in Portland, Oregon. Linnaea borealis with fruits. Linnaea borealis growing in a 1-gallon container at a native plant nursery near Portland, Oregon. Linnaea borealis with flowers. Linnaea borealis growing as a continuous ground cover in the wild.