Ulmus americana


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Related to Ulmus americana: American elms
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Noun1.Ulmus americana - large ornamental tree with graceful gradually spreading branches common in eastern North AmericaUlmus americana - large ornamental tree with graceful gradually spreading branches common in eastern North America
genus Ulmus, Ulmus - type genus of family Ulmaceae; deciduous trees having simple serrate leaves; widely distributed in temperate regions
elm, elm tree - any of various trees of the genus Ulmus: important timber or shade trees
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Six of those were recorded in 1999 only: alder (Alnus rugosa), hawthorn (Crataegus sp.), American ash (Fraxinus americana), jack pine (Pinus banksiana), basswood (Tilia americana), and American elm (Ulmus americana), and all were rare (RA < 0.01), except for basswood (RA = 0.012).
A census of all trees with a dbh [greater than or equal to] 20 cm revealed that the floodplain woodland is dominated by woody species commonly characteristic of this habitat, e.g., Acer negundo, Popuius deltoides, Acer succharinum, Platanus occidentalis, Juglans nigra, Aescuius glabra, Celtis occidentalis, and Ulmus americana. A sample of trees with a dbh [greater than or equal to] 5 cm but < 20 cm suggest that A.
The ants were found foraging in the leaf litter of a deciduous forest that contained American Elm (Ulmus americana), Hackberry (Celtis occidentalis), and Pecan (Carya illinoensis).
Em estudo de dose resposta por flexoes caulinares, Telewski e Pruyn (1998) observaram em mudas de Ulmus americana submetidas a flexoes caulinares efetuadas manualmente, durante tres semanas, a reducao no crescimento em altura e aumento no diametro do coleto com a aplicacao de ate 40 flexoes diarias.
Other species include: Carya tomentosa (Poir.) Nutt., Diospyros virginiana L., Juniperus virginiana L., Pinus banksiana Lamb., Pinus sylvestris L., Prunus serotina Ehrh., Ulmus americana L.
The tree, Ulmus americana Princeton, is resistant to the Dutch Elm disease, and has been donated by Select Horticulture of Lancaster.
febrifuga always occurred on opposite side to the bud, but it was not associated with bud origin as verified in stems of Tilia platyphyllos, Fraxinus excelsior and Couroupita guianensis (Fink 1983) and in Ulmus americana (Angeles et al.
The subcanopy contains Acer negundo, boxelder; Gleditsia triacanthos, honey locust; Fraxinus pennslyvanica, green ash; Ulmus americana, American elm; and Morus alba, white mulberry--all common at this site.
In the upstream floodplain with a longer hydroperiod the most numerous species are American elm (Ulmus americana), and Red Ash (Fraxinus pennsylvanica).
The vegetation of the Ten-Mile Creek floodplain contained plant species commonly found in wet habitat, including Acer spp., Aesculus glabra, Comus racemosa, and Ulmus americana (Table 1), Asarum canadense, Impatiens capensis, Laportea canadensis, and Lysimachia nummularia (Table 2).
Another subject of controvery on the list is the state and national champion American elm (Ulmus americana), which was nominated for that list in 1985 by the big tree hunting team of Byron Carmean and Gary Williamson.