- a European plant, Viscum album, having yellowish flowers and white berries, growing parasitically on various trees, used in Christmas decorations.
- any of several other related, similar plants, as Phoradendron serotinum, of the U.S.: the state flower of Oklahoma.
- a Eurasian evergreen shrub, Viscum album, with leathery leaves, yellowish flowers, and waxy white berries: grows as a partial parasite on various trees: used as a Christmas decoration: family Viscaceae
- any of several similar and related American plants in the families Loranthaceae or Viscaceae, esp Phoradendron flavescens
- an epiphytic cactus, Rhipsalis cassytha, that grows in tropical America
