NatureServe Conservation Status
Rounded Global Status Rank: G4 - Apparently Secure
Reasons: Occurs infrequently in forest stands throughout most of the eastern United States and Canada. The abundance and condition are both in rapid decline due to butternut canker disease, with no known remedy. At the time of this review (2006), even with the canker evident and widespread, there are a large number of occurrences persisting and resistant trees, though rare, are found in many areas of the range. The species is not currently vulnerable to extinction, but there is certainly reason for longer-term concern. The rank should be reevaluated frequently.
Environmental Specificity: Moderate to broad.
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