I bought a Ginkgo tree for sentimental reasons: I grew up where Ginkgo was planted as avenue of street trees and used to climb them as a child (I was a tree hugger even then )
Now, as I'm researching the best location on my property to plant it, I keep seeing references that Ginkgo is native to China. Yet, there is a "Ginkgo Petrified Forest" in Washington State -- apparently the only fossil evidence in the world. "History explains that Ginkgo trees used to inhabit much of the earth, but eventually were left to caretakes in Japan and China. Nowhere in the world are prehistoric ginkgo trees discovered other than right here in Washington State." (These statements are kind of contradictory -- maybe there are leaf print fossils elsewhere?)
So, what about N.E./Mid-Atlantic U.S.A.? If it "used to inhabit much of the earth" can I give it an "honorary" native status?