DESCRIPTION OF NATIVE 



VINES 



Native and naturalized, found in the Northeastern 

 United States (Maine to Virginia, and west to the Mis- 

 sissippi). 



For definition of terms see pp. 411-424. 



I. American Ivy. Woodbine. Virginia Creeper. (Am- 

 pelopsis quinquefolia.) 



Leaf : palmate, alternate ; leaflets, 3-7 (commonly 5), serrate, 

 (except lower half), elliptical, both ends pointed. Flower : green- 

 ish, small (petals 5), clustered ; July ; fruit small berries, dark 

 blue ; climbing by short rootlets ending xnjlat disks. (PL I.) 



2. Poison Ivy. Poison Oak. (Rhus toxicodendron.) 



Leaf: pinnate, alternate ; leaflets, 3, entire, or irregularly and 

 coarsely notched or lobed, long-ovate, apex pointed. Flower : 

 greenish-white, small (petals 5), clustered ; June, July ; fruit 

 light-brown or white, berry-like ; climbing by short rootlets end- 

 ing vsxjlat disks ; sometimes a low, erect shrub. (PI. I.) 



3. English Ivy. (Hedera helix.) 



Leaf: simple, alternate, 5-lobed or angled (entire near the 

 flowers), thick, leathery, evergreen. Flower : greenish-yellow 

 (petals, stamens and styles 5), clustered ; August-October. Eu- 

 rope ; widely cultivated, and now locally spontaneous. (PI. I.) 



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