On the island adjacent to the lighthouse grows a small butternut tree. A type of walnut tree, it produces an oblong-shaped nut in the fall. This tree is a protected species. Butternut trees (Juglans cinerea) are becoming rare due to a fungus blight. These trees are listed by New York State as “exploitably vulnerable” native plants likely to become threatened in the near future throughout all or a significant portion of their ranges within the state if causal factors continue unchecked. According to state law, it is a violation for any person, anywhere in the state, to pick, pluck, sever, remove, damage by the application of herbicides or defoliants, or carry away, without the consent of the owner, any protected plant.