Best Find of the Run! Chestnuts!!
I get provoked, wired, elated, ecstatic and angered-- often-- while out in the woods. There's so much to see, good and bad. Usually, I'm a relatively composed individual. Even in the woods.
Last Sunday though, I was ecstatic. Running atop the Blue Ridge, dodging rocks and clusters of acorns, I suddenly shrieked out to Dave, always about ten yards or so in front of me, to make a full stop and turn around. I'd found something that had eluded me in my almost 60 years of woods watching.
When Dave arrived, I was standing over a number of large, bright green items that resembled day-glo, chartreuse pincushions. I was probably twitching with excitement. Those hedgehog look-alikes were American chestnut burs; within, they held American chestnuts.
Why the excitement? At the beginning of the twentieth century, the American chestnut was the dominant tree of millions of acres of eastern and midwestern North American forest. The nutritious nuts, falling in October and Novmeber each year by the billions, fed local people, hogs, black bears, wild turkey, deer and hundreds of other species. The wood was of superb quality and was naturally rot-resistant.
The trees reached heights of 110 ft or more with trunk diameters of over 17 feet. In 1905, American chestnuts in Brooklyn became in infected with a blight thought to have been introduced from nearby Japanese chestnuts, a related species. Over the next 20 years, almost all American chestnuts had died back to their root systems.
For the past 90 years, those ancient roots put up new sprouts that reach a height of 6 to 25 feet. The blight then overcomes the young trees and kills them back to their roots. Millions of these root sprouts remain but very few ever grow large enough to produce nuts.
I'd found two or three trees, slightly resistant to the blight, growing from root systems hundreds of years old. To produce nuts, two or more resistant trees need to be growing closely enough for cross pollination to occur. Rarely does a tree grow large enough to flower. Rarer even are two close enough and producing enough pollen for fruit to set. Up on the Blue Ridge, somewhere south of the Blackburn Trail Center, conditions were just right. This wasn't the first year; burs from 2005 and 2004 and perhaps even earlier were on the ground nearby.
The American chestnut split off genetically from its blight-resistant relative, the Chinese chestnut, some 10 to 15 million years ago. It is unlikely that a species with that kind of endurance would disappear due to some single human blunder. Realistically however, it might be another half dozen centuries before they regained their place in our woodlands.
Many researchers and organizations have been working for decades to find resistant trees, to breed resistance into the American chestnut from its Asian relatives and now re-introduce this incredible tree back to its former haunts. The American Chestnut Foundation works tirelessly to breed and distribute resistant trees and to continue the search for remaining living trees that are producing chestnuts.
As Dave and I collected the last of the 12 chestnuts we took with us, we noticed a gray squirrel running across the Appalachian Trail ahead of us. In its mouth was a chestnut. How many generations of squirrels in our eastern forests have gone a fall season without eating what was the staple in the diet of millions of generations of their squirrel ancestors?
The chestnuts we found won't be roasted on an open fire. They'll rest for the next four months or so in our refrigerator, a necessary cold treatment to trigger germination come spring. They should sprout next April or May and then will be carefully nurtured in our Backyard Wildlife Habitat for a year or two before being placed out in friends' chestnut-friendly Virginia woodlands. It'll be a tiny step in bringing back this sorely missed friend of wildlife and people alike.