sentences:  In the USA "U. montana atropurpurea" was marketed by the Klehm nursery of Arlington Heights, Illinois, in the early 20th century.A specimen labelled "U. glabra" 'Atropurpurea' at Wakehurst Place survives by being treated as a hedging plant, too low to attract the attentions of the Scolytus beetles that act as vectors of Dutch elm disease.