Ulmus davidiana var. japonica 'Freedom'
Ulmus davidiana var. japonica 'Freedom' | |
---|---|
Variety | Ulmus davidiana var. japonica |
Cultivar | 'Freedom' |
Origin | Canada |
The Japanese Elm cultivar Ulmus davidiana var. japonica 'Freedom' is another cold-resistant selection from Canada, raised along with 'Discovery' in the 1980s by Dr Wilbert Ronald, of Jeffries Nurseries Ltd., and Rick Durand of Shade Consulting Services, Portage la Prairie, Manitoba [3].
Description
Little descriptive information is available, beyond its comparison with the 'Discovery' clone in the latter's patent application, in which it is noted that 'Freedom' has an open crown with codominant lateral branching, and leaves tinged reddish-purple in autumn.[1][2][3] The species does not sucker from roots.[4]
Pests and diseases
The tree has a similar resistance to Dutch elm disease and elm leaf beetle Xanthogaleruca luteola as 'Discovery'.
Cultivation
'Freedom' is not known to be in cultivation beyond Canada.
Accessions
None known.
Nurseries
North America
- Patmore Nursery [4], Brandon, Manitoba, Canada.
- Sun Valley Garden Centre [5], Eden Prairie, Minnesota, US.
References
- ^ Photograph of 'Freedom' elms, [1].
- ^ [2] Photograph of 'Freedom', Todd P. West, 'Elms: the Good, the Bad and the Ugly'; North Dakota State University Department of Plant Sciences; November 2022; p.26
- ^ Japanese elm tree named 'Discovery'; freepatents online.com
- ^ Heybroek, Hans M. (1981). "The Japanese elm species and their value for the Dutch elm breeding program" (PDF). Proceedings of the Dutch Elm Disease symposium and workshop, October 5–9, Winnipeg, Manitoba: 78–90.
- v
- t
- e
- U. alata (Winged elm)
- U. americana (American elm)
- U. americana var. floridana (Florida elm)
- U. bergmanniana (Bergmann's elm)
- U. bergmanniana var. bergmanniana
- U. bergmanniana var. lasiophylla
- U. castaneifolia (Chestnut-leafed or multinerved elm)
- U. changii (Hangzhou elm)
- U. changii var. changii
- U. changii var. kunmingensis (Kunming elm)
- U. chenmoui (Chenmou or Langya Mountain elm)
- U. chumlia
- U. crassifolia (Cedar or Texas cedar elm)
- U. davidiana (David or Father David elm)
- U. davidiana var. davidiana
- U. davidiana var. japonica (Japanese elm)
- U. elongata (Long raceme elm)
- U. gaussenii (Anhui or hairy elm)
- U. glabra (Wych or scots elm)
- U. glaucescens (Gansu elm)
- U. glaucescens var. glaucescens
- U. glaucescens var. lasiocarpa (hairy-fruited glaucescent elm)
- U. harbinensis (Harbin elm)
- U. ismaelis
- U. laciniata (Manchurian cut-leaf or lobed elm)
- U. laciniata var. nikkoensis (Nikko elm)
- U. laevis (European white elm)
- U. laevis var. celtidea
- U. laevis var. parvifolia
- U. laevis var. simplicidens
- U. lamellosa (Hebei elm)
- U. lanceifolia (Vietnam elm)
- U. macrocarpa (Large-fruited elm)
- U. macrocarpa var. glabra
- U. macrocarpa var. macrocarpa
- U. mexicana (Mexican elm)
- U. microcarpa (Tibetan elm)
- U. minor (Field elm)
- U. minor subsp. minor
- U. minor var. italica
- U. parvifolia (Chinese or lacebark elm)
- U. parvifolia var. coreana (Korean elm)
- U. prunifolia (Cherry-leafed elm)
- U. pseudopropinqua (Harbin spring elm)
- U. pumila (Siberian elm)
- U. rubra (Slippery elm)
- U. serotina (September elm)
- U. szechuanica (Szechuan (Sichuan) or red-fruited elm)
- U. thomasii (Rock or cork elm)
- U. uyematsui (Alishan elm)
- U. villosa (Cherry-bark or marn elm)
- U. wallichiana (Himalayan or kashmir elm)
- U. wallichiana subsp. wallichiana
- U. wallichiana subsp. xanthoderma
- U. wallichiana var. tomentosa
- U. boissieri
- U. minor subsp. canescens (Grey, grey-leafed or hoary elm)
- U. elliptica
- U. davidiana var. japonica × U. minor
- U. × arbuscula
- U. × arkansana
- U. × brandisiana
- U. × diversifolia
- U. × hollandica (Dutch elm)
- U. × hollandica var. insularum
- U. × intermedia
- U. × mesocarpa
- aff. Plotii
- Acutifolia
- Alata
- Alksuth
- Argenteo-Marginata
- Aspera
- Atropurpurea
- Australis
- Berardii
- Betulaefolia Nigrescens
- Crispa
- Crispa Aurea
- Crispa Pendula
- Densa
- Exoniensis
- Fastigiata Glabra
- Folia Aurea
- Folia Rubra
- Folia Variegata Pendula
- Gallica
- Glabra
- Globosa
- Hamburg
- Hertfordensis Angustifolia
- Hertfordensis Latifolia
- Hillieri
- Jalaica
- Jacqueline Hillier
- Kansas Hybrid
- Klemmer Blanc
- Koopmannii
- Lombartsii
- Louis van Houtte
- Marmorata
- Monstrosa
- Myrtifolia
- Myrtifolia Purpurea
- Nemoralis
- Nigrescens
- Planeroides
- Planifolia
- Purpurea
- Pyramidalis Bertini
- Ramulosa
- Rotundifolia
- Rubra
- Rufa
- Rugosa
- Scampstoniensis
- Sericea
- Tiliaefolia
- Tortuosa
- Turkestanica
- Variegata Nova
- Virens
- U. okanaganensis
![]() | This Ulmaceae article is a stub. You can help Wikipedia by expanding it. |
- v
- t
- e