sour gum

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sour gum:

see black gumblack gum,
ornamental deciduous tree (Nyssa sylvatica family Nyssaceae) native to E North America. The leaves turn bright scarlet in the fall. The very tough wood was used for wheel hubs and other purposes.
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References in periodicals archive ?
Black tupelo, water tupelo, gum, sour gum, bowl gum, pepperidge, stinkwood, wild peadree and yellow gum tree.
Whereas most forest types are dominated by two or three species, the mixed mesophytic harbors 80 woody species including beech, yellow poplar, basswood, sugar maple, chestnut, sweet buckeye, red oak, white oak, yellow locust, birch, black cherry, cucumber tree, white ash, red maple, sour gum, black walnut, and various hickories.
(Daymon Morgan, a Kentucky native, later led a hike past the sandstone cliffs on a nearby ridge, pointing out the sour gum tree that makes good honey and the black cohosh plants "good for women's problems.") Ned Fritz has written a book, Clearcutting: A Crime Against Nature, but he didn't need to convince anyone here.