| Ulmus parvifolia | |
|---|---|
| Details | |
| Cultivar |
'Emer I' or 'Emerald Isle' Athena |
| Origin | USA |
The Chinese Elm Ulmus parvifolia Jacq. cultivar 'Emer I' or 'Emerald Isle' (Athena) was cloned from a tree planted circa 1920 on the University of Georgia campus at Athens [1].
Contents |
'Emer 1' is a small tree rarely exceeding 6 m in height, with a slightly broader, dense and rounded crown [1]. The leaves are a medium, glossy green, turning drab brown in autumn. The exfoliating, mottled bark is considered very attractive.[2]
The species and its cultivars are highly resistant, but not immune, to Dutch elm disease, and unaffected by the Elm Leaf Beetle Xanthogaleruca luteola [3]. As with the species overall, damage caused by Japanese Beetle is relatively slight [2].
The tree featured in the elm trials[4] conducted by Northern Arizona University at Holbrook, Arizona, but was unsuited to the hot, arid climate and sustained over 50 % mortality in its first year. It is currently being evaluated in the National Elm Trial [5] coordinated by Colorado State University. 'Emer 1' was introduced to Australia in 2002 as part of the Australian Urban Street Planting Programme [6]; it is not known to have been introduced to Europe.
(Widely available)