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American elm (Ulmus alba, Ulmus americana, Ulmus pendula); American white elm (Ulmus alba, Ulmus americana, Ulmus pendula); soft elm (Ulmus alba, Ulmus americana, Ulmus pendula); white elm (Ulmus alba, Ulmus americana, Ulmus pendula) | |||
European white elm (Ulmus effusa, Ulmus laevis); Russian white elm (Ulmus effusa, Ulmus laevis) |