Other forms: ivies
Ivy is a plant that climbs fences and trellises, or creeps along the ground as it grows. Most ivy has dark, shiny leaves with five points.
There are many types of ivy, from English ivy (which you can also grow indoors), to the true ivy's close relative, poison ivy, which is famously irritating, causing a terrible, itchy rash. Ivies are evergreen, which means they keep their green leaves in the winter. The so-called "Ivy League" is a group of eight selective colleges (including Harvard and Princeton), given this name for the ivy that creeps up many of the campuses' old brick buildings.