Sentence examples for circumboreal from inspiring English sources

B. pendula (silver birches) and B. nana (dwarf birches) are circumboreal (i.e., extending to the northern limit of the tree line); the two species very nearly coincide in their ranges, with the dwarf birches extending farther into the Arctic.

Cushion stars, of the circumboreal genus Pteraster, are plump five-rayed forms with raised tufts of spines and webbed, short, blunt arms.

Bog rosemarys are circumboreal plants, native to cooler regions thoughout Europe, Asia and North America, and not related to the edible herb.