A more serious problem is that ivy creates a vigorous, dense, shade-tolerant evergreen groundcover (precisely the characteristics for which it is often cultivated) that can spread over large areas and out-compete native vegetation.
Subsequent removal of the ivy can be difficult, and is likely to cause more damage than the ivy itself.
Walls with already weak or loose mortar may, however, be badly damaged, as the ivy is able to root into the weak mortar and further break up the wall.
Regional English names for ivy include bindwood and lovestone (for the way it clings and grows over stones and brickwork).
Ecologically, ivy is an important food resource for various animals.
Ivy fruits and leaves contain the a saponin, hederin, which is poisonous to humans but is also used medically for the treatment of respiratory disorders because of the substances spasmolytic, expectorant, and antiobstructive effects.
The chemical that makes ivy leaves and fruits poisonous to consume, hederin, also is used medicinally to treat various respiratory disorders.
The most well-known species is Hedera helix, which is known as "English ivy" (or common ivy) and is widely cultivated.
Araliaceae, the flowering plant family to which the genus Hedera belongs, is also known as the ivy family, as well as the aralia family (after its type genus Aralia).
Even more unfortunately, there are universities that have the prestige of an Ivy League school. MIT, Stanford, Caltech, Duke, Northwestern, Amherst, and Williams are among these colleges. USC — while certainly a good school that is improving its academic reputation over these past few years — is not among them.Aug 18, 2012
The eight members are Brown University, Columbia University, Cornell University, Dartmouth College, Harvard University, the University of Pennsylvania, Princeton University, and Yale University. The term Ivy League has connotations of academic excellence, selectivity in admissions, and social elitism.
The Ivy League is an official trademarked name, representing a specific consortium of colleges and universities. It has not changed in many years. Harvard, Yale, Princeton, Penn, Brown, Cornell, Dartmouth, Columbia are the only schools in the Ivy League.
The creation of business schools at Ivy League universities occurred over a period of nearly a century, beginning with the Wharton School of the University of Pennsylvania, founded in 1881 by Joseph Wharton, which was the first collegiate (undergraduate) business school in the world.