Assuming that you mean non-symmetrical, the answer is yes.
Tessellation is using multiple copies of a shape, usually a polygon, to cover a plane without gaps or overlaps. Each copy of this single shape is a tessellating unit.
A tessellation is created when a shape is repeated over and over again covering a plane without any gaps or overlaps.
No a pentagon is a single polygonal shape, A tessellation is a scheme for covering a plane, without gaps of overlaps, using multiple copies of the same basic shape. These are usually polygons.
Tessellation
That is 'tessellation'
Tessellation comprising using multiple copies of a plane (2-dimensional) shape to fill a plane without gap or overlap.
A circle!
A tessellation is when a shape is repeated over and over creating an image without any spacing.... like triangles put together next to one another in an endless plane.The tessellation is a repeating pattern of figures that covers a plane without any gaps or overlaps.Honeycomb is a tessellation of hexagonal cells. You can see tessellation on some pavements.Source: http://www.icoachmath.com/SiteMap/Tessellation.html
The work "tessellation" is derived from a tessella, a small cuboid clay tile which was used to make mosaics. In the context of tessellation, as the term is used in modern geometry, the basic element is a plane shape such that multiple copies of the shape will cover a plane without gaps or overlaps.
answer
A tessellation is a method for using copies of a single shape to cover a plane surface without gaps or overlaps. Semi-regular tessellations use two (or more) shapes.
All shapes have to be polygons, because there is no shape that has 1 or 2 sides. A tessellation has to be a shape, so that it can be repeated. Its not going to be much of a tessellation if its a line.. lol.. that isn't a tessellation