This evergreen parasitic shrub grows in a ball between 25 and 125 centimetres in diameter, which resembles a bird's nest from a distance. The yellowish stems are smooth and forked with bone-like joints. The leaves are long, thick and leathery, and are arranged in pairs on very short stalks. The small flowers are yellowish green and inconspicuous. The fruit is a globular, smooth, white berry containing a sticky pulp. Mistletoe flowers from March to April, and the berries ripen from September to October.
Mistletoe grows on many trees and shrubs, preferring ash, hawthorn, lime and fruit trees.