Context: Dryer and rockier uplands and ridges are occupied by oak-chestnut type forests dominated by a variety of oaks (Quercus spp.), hickories (Carya spp.) and, in the past, by the American chestnut (Castanea dentata). The American chestnut was virtually eliminated as a canopy species by the introduced fungal chestnut blight (Cryphonectaria parasitica), but lives on as sapling-sized sprouts that originate from roots, which are not killed by the fungus. In present-day forest canopies chestnut has been largely replaced by oaks.

Question: What trees are typically found in the dryer portions?
Answer: oak

Question: What species of tree was pretty much eliminated?
Answer: The American chestnut

Question: What does the tree live on?
Answer: sapling-sized sprouts

Question: What trees replaced chestnut trees?
Answer: oaks

Question: What species has had a comeback in the uplands?
Answer: Unanswerable

Question: What were hickories nearly exterminated by?
Answer: Unanswerable

Question: What type of tree are chestnuts replacing?
Answer: Unanswerable

Question: What form of Chestnut is attacked most viciously by the fungus?
Answer: Unanswerable

Question: Where does the fungus originate from?
Answer: Unanswerable