Ulmus americana 'Columnaris'

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Ulmus americana
Cultivar
'Columnaris'
Origin
Consesus Lake, New York, USA

The American Elm Ulmus americana 'Columnaris' has a columnar form [2], and was propagated from a tree found by Mr John Dunbar at Conesus Lake, New York, before 1920 ^[1]. The tree is no longer available from nurseries. 'Columnaris' is not known to have been introduced to Europe.

NB. Not to be confused with U. americana var. columnaris Rehder, J. Arnold Arbor. 3: 42, 1922.

[edit] Arboreta etc. accessions

North America

• Morton Arboretum, acc. no. 1041-41, (graft). Specimen in the Columnar Tree Section reputed to be "in good health" in the autumn of 2006.

[edit] References

[edit] External links

• http://www.bgci.org/plant_search.php?action=Find&ftrGenus=Ulmus&ftrRedList=&ftrSpecies=&ftrRedList1997=&ftrEpithet=&ftrCWR=&x=41&y=19NB. Botanic Gardens Conservation International register
• http://redwood.mortonarb.org/PageBuilder?cid=2&qid=13 Morton Arboretum catalogue