Existing as a limited number of small and isolated populations, Carolina hemlock has insufficient gene flow to avoid widespread genetic drift and inbreeding, despite having the capacity to disperse pollen and seed relatively long distances by wind. These results have important conservation implications for this imperiled species.

Read more: http://threatenedforests.com/wp-content/uploads/Potter-et-al.-2017-TGG-13-105.pdf

Read more: https://www.srs.fs.usda.gov/compass/2017/11/14/carolina-hemlock-populations-isolated-and-imperiled/