Ulmus parvifolia 'UPMTF' (selling name Bosque) is a Chinese Elm cultivar that was found in a field at Moon's Tree Farm, Atlanta, Georgia, in 1993 and raised by Moon's Tree Farm nursery. It was patented in 2000. It is notable for its upright ascending branches.[2]

Description

Rarely exceeding 6 metres (20 ft) in height, Bosque has a single central leader and strong ascending branches forming a pyramidal crown. The leaves are a lustrous dark green, turning yellow to orange in autumn. The mottled bark ranges from greyish orange to greyish brown. The tree is reputed to be very fast growing.[3][2]

Pests and diseases

The species and its cultivars are highly resistant, but not immune, to Dutch elm disease, and unaffected by the Elm Leaf Beetle Xanthogaleruca luteola.[4]

Cultivation

An avenue of Bosque lines Purdue Mall, Purdue University, West Lafayette, Indiana.[5] Bosque lines the north side of Jackson Avenue, Corvallis, Oregon, east of 9th Street.[2][6] Lines of Bosque and Allee in North Robinson Avenue and North Harvey Avenue, Oklahoma City, flank the Oklahoma City National Memorial.[1]

Etymology

Acronym of Ulmus Parvifolia Moon Tree Farm.

Accessions

North America
  • Bartlett Tree Experts, US. Acc. nos. 2003–925/6

Nurseries

North America

(Widely available)

Europe

  • Van Den Berk (UK) Ltd., [1], London, UK

References

  • [2] Ulmus parvifolia cultivar list, ces.ncsu.edu
  • [3] Return of the Elm - the status of elms in the nursery industry in 2000. Warren, K., J. Frank Schmidt and Co., fletcher.ces.state.nc.us
  • [4] Bosque elm factsheet, shademakertrees.com


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