Common to abundant trees included Acer nigrum, Celtis occidentalis, Juglans nigra
, and Ulmus americana.
Paschke MW, Dawson JO, David MB (1989) Soil nitrogen mineralization in plantations of Juglans nigra
interplanted with actinorhizal Elaeagnus umbellata or Alnus glutinosa.
Some species, like Juglans nigra
, use stress-induced leaf abscission during summer to increase the root-shoot ratio in order to maintain a more favorable water balance during summer droughts (Parker & Pallardy, 1985; Pallardy & Rhoads, 1993).
Two tree species with well-known allelopathic properties, Juglans nigra
(De Scisciolo et al.
Initial assessment of thousand cankers disease on black walnut, Juglans nigra
, in eastern Tennessee.
Concentration levels of imidacloprid and dinotefuran in five tissue types of black walnut, Juglans nigra
Around 20 other species of walnut tree grow in various parts of the world, some also producing good stock wood, most notably a couple native to North America, the eastern black walnut Juglans nigra
, and the western black walnut more commonly known as Claro (Juglans hindsii).
3 6 Gleditsia triacanthos Honey locust 3 4 Sambucus canadensis Elderberry 3 4 Rhamnus cathartica (*) Common buckthorn 2 6 Populus deltoides Cottonwood 1 8 Rhus glabra Smooth sumac 1 5 juglans nigra
Walnut 1 2 Ailanthus altissima (*) Tree-of-heaven 1 2 Toxicodendron radicans Poison ivy 1 1 juniperus virginiana Red cedar 1 1 Gymnocladus dioica Kentucky coffeetree 1 1 TABLE 3.
The black walnut, Juglans nigra
, is a tree famous for its nuts, which are harvested en masse each October.
The least disturbed forest occurs on the bluff face, and is dominated by Acer saccharum, Fraxinus americana, Tilia americana, Juglans nigra
and Celtis occidentalis.
Some less common species found included Aesculus glabra, Fraxinus quadrangulata, Gleditisia triacanthos, Juglans nigra
, Prunus serotina, Quercus muehlenbergii, Robinia pseuodacacia, and Maclura pomifera.
The most important species at these sites were Juglans nigra
, Populus deltoides, Ulmus americana, Aesculus glabra and Fraxinus pennsylvanica.
ovata, Prunus serotina and Quercus alba) and flood plains near ponds and low areas (Acer saccharinum, Juglans nigra
and Ulmus americana).
However, according to Griggs (1914) Acer rubrum, Alnus rugosa, and Ulmus americana are typical of the wetter areas, whereas Quercus palustris, Juglans nigra
, Fraxinus pennsylvanica, and Prunus serotina, to mention a few, typify the drier sites of the Bottom-land swamp.
latifolia 1 tamarack Larix laricina 1b laurel willow Salix pentandra 2 European white birch Betula pendula 2 white elm Ulmus americana 2a cranberry Viburnum trilobum 2b Manitoba maple Acer negundo 2b ponderosa pine Pinus ponderosa 2b Ohio buckeye Aesculus glabra 2b hackberry Celtis occidentalis 3 little-leaf linden Tilia cordata 3 Rocky Mountain juniper Juniperus scopulorum 3 red maple Acer rubrum 3b black walnut Juglans nigra
3b white ash Fraxinus americana 4 ginkgo/maidenhair tree Ginkgo biloba 4 black locust Robinia pseudoacacia 4a Rocky Mountain Douglas-fir Pseudotsuga menziesii var.