The holly is the general name for the Ilex plant genus (and this is the only living genus in the plant family Aquifoliaceae). The members of the this genus are evergreen trees, shrubs, and climbers (vines) that are found from the tropics to the temperate areas worldwide.
These plants are usually dioecious (where the male & female flowers are different plants)—hence I’m not really sure which plant that I took the picture of (male or female). These plants have glossy leaves with a spiny leaf ridge.
These bushes provide food and shelter for numerous different birds, and even insects. The tropical species are the ones that currently at the most risk due to habitat destruction and being overly exploited.