Tags: Cultivar (Cultivated Variety).
‘Urban’ is an American hybrid elm cultivar selected from the progeny of a controlled crossing of the Siberian Elm Ulmus pumila with the Dutch clone ‘148’ (U. × hollandica ‘Vegeta’ × U. minor ’28’) in 1958 by Toru Arisumi of the USDA at Columbus Ohio. Clone ‘148’ had been sent to the USA from the Netherlands in 1952 by Johanna Went leader of the elm research team at the Willie Commelin Scholten Phytopathology Laboratory in Baarn.
