circumboreal distribution The distribution pattern displayed by organisms around the high latitudes of the northern hemisphere in the boreal zone. The boreal zone lies next to the Arctic zone, and many circumboreal organisms are in fact also circumarctic. An example of a plant with both types of distribution is Saxifraga oppositifolia (purple saxifrage).

circumboreal distribution The distribution pattern displayed by organisms around the high latitudes of the northern hemisphere in the boreal zone. The boreal zone lies next to the Arctic zone, and many circumboreal organisms are in fact also circumarctic. An example of a plant with both types of distribution is Saxifraga oppositifolia (purple saxifrage).