Ulmus 'Hamburg'
| Ulmus | |
|---|---|
| Cultivar | 'Hamburg' |
| Origin | USA |
The hybrid elm cultivar Ulmus 'Hamburg' was originally raised by the Plumfield Nurseries, Fremont, Nebraska, circa 1932, after its discovery by Mr. Lloyd Moffet in a bed of Siberian Elm Ulmus pumila seedlings from Tekamah. It was later marketed by Interstate Nurseries, Hamburg, Iowa, in 1948, and claimed to be a hybrid of Ulmus pumila (female parent) and Ulmus americana. However it is now considered more likely that Ulmus rubra was the male parent.[1]
Description
'Hamburg' has been described as a hardy, very rapid grower, with much stronger branching than the Siberian Elm.[2][3]
Pests and diseases
'Hamburg' had not (by 1995) been widely tested for resistance to Dutch elm disease.[2]
Cultivation
Largely confined to the USA, several were introduced to the UK. The tree is not known to have been introduced to Australasia.
Synonymy
- 'Hamburg Hybrid Elm': Interstate Nurseries, Hamburg, Iowa, Catalogue, Spring 1949.
- 'Hybrid Chinese Elm': Anon.
Accessions
- North America
- Arnold Arboretum. Acc. nos. 520–53, 666–50.
- Europe
- Exeter University Botanic Gardens, Exeter, Devon, UK. TROBI Champion, 17 m high, 55 cm d.b.h., listed as 'Hamburg Hybrid'.
References
- ↑ Green, P. S. (1964). Registration of cultivar names in Ulmus. Arnoldia, Vol. 24. Arnold Arboretum, Harvard University.
- 1 2 Santamour, F. S., & Bentz, S. E. Updated checklist of elm (Ulmus) cultivars for use in North America. Journal of Arboriculture, 21(3): May, 1995
- ↑ Ulmus 'Hamburg' in Handbuch der Ulmengewächse, www.ulmen-handbuch.de