Phoradendron leucarpum is a species of mistletoe which is native to the United States and Mexico. Its common names include American mistletoe, eastern mistletoe, hairy mistletoe or oak mistletoe. It is native to Mexico and most parts of the continental United States. It is hemiparasitic, living in the branches of trees. The berries are white and 3-6 millimeters (0. 12-0. 24 in). It has opposite leaves that are leathery and thick. Ingesting the berries can cause "stomach and intestinal irritation with diarrhea, lowered blood pressure, and slow pulse". This shrub can grow to 1 meter (3. 3 ft) by 1 meter (3. 3 ft). Phoradendron leucarpum is used in North America as a surrogate for the similar European mistletoe Viscum album, in Christmas decoration and associated traditions (such as "kissing under the mistletoe"), as well as in rituals by modern druids. It is commercially harvested and sold for those purposes.