Examples of trees introduced into the region, 

 with their maximum height, include: 



Ailanthus altissima. tree-of-heaven, 70 ft, 



People's Republic of China 

 Broussonetia papyri/era, paper mulberry, 40 



ft, eastern Asia to Polynesia 

 Cedrus deodara, deodar cedar, 100 ft, Nepal 



and adjacent People's Republic of China 

 Cunninghamia lanceolata, China fir, 70 ft, 



People's Republic of China, with Taiwan 

 Firmiana simplex, parasol tree, 60 ft, People's 



Republic of China 

 Moras alba, white mulberry, 40 ft. People's 



Republic of China 

 Paulownia tomentosa, princess tree, 50 ft, 



People's Republic of China 

 Platanus xacerifolia, London plane, 60 ft, 



garden origin 

 Salix babylonica, weeping willow, 60 ft, 



People's Republic of China(?) 

 Sapium sebiferum. Chinese tallow tree, 80 ft. 



People's Republic of China 

 Sequoia sempervirens, coast redwood, 100 ft, 



California. 



Examples of smaller trees, both native and 

 introduced, include: 



Albiziajulibrissin, mimosa tree, 30 ft, Iran to 



People's Republic of China, Japan, and Korea 

 Amelanchier arborea, serviceberry, 35 ft, 



eastern United States 

 Asimina triloba, pawpaw, 35 ft, eastern United 



States 

 Buxus sempervirens, common boxwood, 25 ft, 



Europe 

 Cercis canadensis. North American redbud, 25 ft, 



eastern United States 

 Chionanthus retusus var. serrulatus, 25 ft, 



People's Republic of China, with Taiwan 

 Cornus Jlorida, flowering dogwood, 30 ft, 



eastern United States 

 Cotinus obovatus, American smoke tree, 40 ft, 



eastern United States 

 Cyrilla racemiflora. titi, 25 ft, southeastern 



United States 

 Magnolia ashei, Florida bigleaf magnolia, 25 ft, 



northern Florida. 



Trees are deciduous, evergreen, or sometimes 

 semi-evergreen, depending upon climate and 

 species. A well-known tree indigenous to the 

 southeastern United States is the southern live 

 oak (Quercus virginiana). usually regarded as 

 evergreen. In fact, this oak is not truly evergreen 

 in the strict sense. As the new leaves emerge in 



the spring, the previous year's leaves are lost, 

 and the tree becomes essentially leafless for a 

 short period until the new leaves have fully 

 expanded. But some oaks are, indeed, perma- 

 nently evergreen, such as Quercus myrsinifolia, 

 Q. glauca, and Q. acuta — all from Japan. An- 

 other well-known tree. Magnolia grandijlora, 

 remains fully evergreen throughout the year. In 

 this species, leaves normally remain on the tree 

 for 2 years before falling in spring of the second 

 year, but the tree is never leafless. 



Shrubs 



Typically, shrubs differ from trees primarily in 

 being multitrunked from the base and shorter 

 than trees. Shrubs are seldom more than 20 feet 

 in height; some of the largest may be single- 

 trunked and treelike. Stature alone is not an 

 absolute measure of shrub classification. A good 

 example is illustrated by Magnolia virginiana. 

 The northern aspect of this species, distributed 

 from Massachusetts to North Carolina, is typi- 

 cally deciduous, multitrunked, and shrubby, 

 with a spreading habit that fits the stature of a 

 large shrub. In cultivation and in the wild, it 

 sometimes attains a height of 30 feet but seldom 

 more. The southern aspect, often referred to as 

 var. australis, occurs from North Carolina to 

 southern Florida and west to Tennessee, Arkan- 

 sas, and southeastern Texas, where it becomes a 

 lofty evergreen tree with one or two trunks and 

 sometimes reaches 100 feet in height. In cultiva- 

 tion, the southern plant consistently remains 

 evergreen and treelike at least as far north as 

 Washington, DC, even in the coldest winters. 



Although the distinction of deciduous or ever- 

 green habit and the differences in stature can be 

 used to separate the northern and southern 

 aspects in the living state, no discernable taxo- 

 nomic characters can be found to consistently 

 distinguish these variants morphologically. 

 Moreover, the two variants of M. virginiana are 

 often intermediate as to evergreenness and 

 stature, factors that further complicate their 

 identification. For these reasons, var. australis is 

 not recognized in this catalog as a distinct entity. 



Examples of common native and introduced 

 shrubs cultivated in the southeastern United 

 States include: 



Abelia x grandijlora, glossy abelia, 6-8 ft, a 



hybrid of Chinese parentage 

 Agarista populifolia, pipe plant, 



12-15 ft, southeastern United States 



