Elaeagnus n. : A genus of shrubs or small trees, having the foliage covered with small silvery scales; oleaster.

Example:
Is the plant Elaeagnus angustifolia L a Cedar or Juniper Tree?

Taxonomy
C. Y. Chang, southern China, Elaeagnus, species, Silverberry, Rehd, Thunb, eastern Asia, free encyclopedia, Elaeagnus commutata, genus, Elaeagnus species, Oleaster, plants, fruit, Several species, Elaeagnus umbellata, E. angustifolia.

Defination from the web:
Elaeagnus. L. Species. See text. Elaeagnus (pronounced /ˌɛliːˈæɡnəs/),[1] known as Silverberry or Oleaster, is a genus of about 50 ... Elaeagnus species are used as food plants by the larvae of some Lepidoptera species including Coleophora elaeagnisella and the gothic moths. Contents ...