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Geographical origins, migration patterns and refugia of Sibbaldia procumbens, an arctic–alpine plant with a fragmented range

Many plants, especially at high latitudes, have both widespread and highly discontinuous geographical distributions. To increase understanding of how such patterns originate, we examine genetic patterns in the arctic–alpine plant Sibbaldia procumbens. We evaluate the contributions of refugia and the role of long‐distance dispersal in shaping the current range of this species.