Ulmus pseudopropinqua
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| iUlmus pseudopropinqua | ||||||||||||||
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| Ulmus pseudopropinqua Wang & Li |
Ulmus pseudopropinqua is a small deciduous tree found only in the northeasternmost province of Heilongjiang in China, where it grows to a height of 10 m. Its wing-less twigs bear small ovate to subovate leaves, < 5.5 cm long by 2.5 cm broad. The wind-pollinated petal-less flowers are produced on second-year shoots in April; the variably-shaped samarae < 25 mm long by 20 mm wide ripen in June.
The tree is one of a range of rare Chinese elms currently under evaluation as landscape plants at the Morton Arboretum, Illinois. In trials in Oklahoma [1], it was found to be unaffected by elm leaf beetles. It is not known to be in cultivation in Europe.
[edit] References
- Fu, L., Xin, Y. & Whittemore, A. (2002). Ulmaceae, in Wu, Z. & Raven, P. (eds) Flora of China, Vol. 5 (Ulmaceae through Basellaceae). Science Press, Beijing, and Missouri Botanical Garden Press, St. Louis, USA. [2]
