Ilex n. : The holm oak (Quercus Ilex).

Ilex n. : A genus of evergreen trees and shrubs, including the common holly.

Example:
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Taxonomy
Ilex, holly, unranked, species, free encyclopedia, Ilex aquifolium, genus, spiny, Eastern North America, the leaves, Ilex pedunculosa, Ilex rotunda, Ilex yunnanensis, the hollies, plant, holly bush, Holly berries, anomala.

Defination from the web:
Ilex. L. Species. About 600, see text. Holly (Ilex, pronounced /ˈaɪlɛks/)[1] is a genus of approximately 600 species of flowering plants ... Hollies (here, Ilex aquifolium) are dioecious: (above) shoot with flowers from male plant; (top right) male flower enlarged from female plant; ...