Grange Farm Arboretum Ulmus lanceifolia, occasionally known as the Vietnam elm, is a very large tree endemic to a wide area of southern Asia.

Its range extends southeast and eastwards from Darjeeling in the Himalaya, through Bangladesh, southern China, Myanmar (formerly Burma), Thailand, Laos, Vietnam and on discontinuously into Indonesia, straddling the Equator in Sumatra and Celebes.

Ulmus lanceifolia can reach a maximum height of 45 m, placing it on a par with the English Elm, but with pendulous branches; the bark of the trunk exfoliates in thin scales.

Given the latitudinal range, there is inevitably a substantial variation in its flowering time, beginning in October in the north, but advancing to February–March in the south.

Not cold-hardy, the species is very rare in cultivation; specimens introduced to the Netherlands from the Himalaya by Heybroek in the 1960s all perished.