Quercus polymorpha, the Mexican white oak, Monterrey oak or netleaf white oak, is a North American species of oak. It is widespread in Mexico, Guatemala, and Honduras, and known from a single population in the United States (about 30 kilometres or 19 miles north of the Río Grande in Val Verde County, Texas) but widely planted as an ornamental. Its acorns are poisonous and unsafe for consumption.[1]

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