Definitions for viscum
This page provides all possible meanings and translations of the word viscum
Viscum, genus Viscum(noun)
type genus of the Viscaceae: Old World evergreen shrubs parasitic on many trees including oaks but especially apple trees, poplars, aspens and cottonwoods
a genus of parasitic shrubs, including the mistletoe of Europe
birdlime, which is often made from the berries of the European mistletoe
Viscum is a genus of about 70-100 species of mistletoes, native to temperate and tropical regions of Europe, Africa, Asia and Australasia. Traditionally, the genus has been placed in its own family Viscaceae, but recent genetic research by the Angiosperm Phylogeny Group shows this family to be correctly placed within a larger circumscription of the sandalwood family, Santalaceae. They are woody, obligate hemiparasitic shrubs with branches 15–80 centimetres long. Their hosts are woody shrubs and trees. The foliage is dichotomously or verticillately branching, with opposite pairs or whorls of green leaves which perform some photosynthesis, but with the plant drawing its mineral and water needs from the host tree. Different species of Viscum tend to use different host species; most species are able to utilise several different host species. The flowers are inconspicuous, greenish-yellow, 1–3 millimetres diameter. The fruit is a berry, white, yellow, orange, or red when mature, containing several seeds embedded in very sticky juice; the seeds are dispersed when birds eat the fruit, and remove the sticky seeds from the bill by wiping them on tree branches where they can germinate.
U.S. National Library of Medicine
A plant genus in the family VISCACEAE, order Santalales, subclass Rosidae, class Magnoliopsida. Species of this genus contain cytotoxic LECTINS. The common name of MISTLETOE is used for many species of this and the LORANTHACEAE families.
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