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.
The longer History Channel keeps silent about the Season 4 return of Vikings, the more fans are jumping at any information in regard to the return date. The latest theory is that Vikings will return on July 7. But how true is this? Thanks to an entry on IMDb, fans have gotten excited about the potential return date for the second half of Season 4 of Vikings. According to the episode guide for Season 4, Episode 11 will premiere on July 7.