Ilex aquifolium

English holly

Aquifoliaceae

The Basics

Taxonomy: Kingdom - Plantae (plants). Subkingdom - Tracheobionta (Vasculat plants). Superdivision - Embryophyta. Division - Magnoliophyta (Flowering plants). Class - Magnoliopsida. Order - Celastrales. Family - Aquifoliaceae (Hollies). Genus -Ilex L. Species - Ilex aquifolium L.

Habitat: Introduced west of the Cascades in Washington; British Columbia south to California; Ontario province. Found mostly forested areas at low elevations.

Identification

General: Ilex aquifolium is an erect, pyramidal, densely-branched, evergreen tree that typically grows to 30-50’ (less frequently to 80’) tall. It also may be trained and grown as a large shrub (10-15’ tall). Elliptic, leathery, glossy, wavy-margined, evergreen, dark green leaves (1-3” long) have large spiny teeth. Greenish-white flowers appear in May. Flowers are fragrant but generally inconspicuous. Pollinated flowers give way to berry-like red (less frequently orange or yellow) drupes (1/4” diameter) which ripen in fall and persist into winter.

Reproduction

Flowers from April to June. Produces dark red berries that are often eaten by birds, facilitating seed spread.

Species Distribution

Citation

Missouri Botanical Garden
“Ilex Aquifolium.” Vitex Agnus-Castus - Plant Finder.

USDA Plants Database
USDA, NRCS. 2017. The PLANTS Database. National Plant Data Team, Greensboro, NC 27401-4901 USA.

Burke Museum of Natural History and Culture
Burke Museum. 2017. Ilex aquifolium [Online]. University of Washington.
Photo credit: 2004, Ben Legler