Leaf. A leaf is an organ of a vascular plant, as defined in botanical terms, and in particular in plant morphology. Foliage is a mass noun that refers to leaves as a feature of plants.eaf (noun). something which is like a leaf in being wide and thin and having a flat surface, or in being attached to a larger body by one edge or end; as : (a) A part of a book or folded sheet containing two pages upon its opposite sides.
Production on Vikings season 4 is set to begin this spring in Ireland (presumably for an early 2016 premiere), while its third season will wrap up in about a month, on April 23rd.
By Megan Vick | Mar 17, 2016 7:37 PM EDT. Jonathan Rhys Meyers. Vikings will fight another day as History announced Thursday that the historical drama is getting a fifth season. The renewal also comes with the news that Jonathan Rhys Meyers (The Tudors) will be joining the cast next season.