Premise: Adlumia is a genus of two species in the Papaveraceae family. One species, "A. fungosa", is commonly known as the Allegheny vine, climbing fumitory, or mountain fringe. It is found in the eastern US, north of VA and TN, as far west as IA and MN, as well as in eastern Canada. The other species, "A. asiatica", is native to Korea and immediately neighbouring parts of China and southeast Russia.
Hypothesis: Adlumia thrives in cold temperatures.