When the tent stitch is worked on canvas, over one warp and one weft thread, it is also known as petit point. If it is worked over two or more warp/weft threads, and the length of the stitch is twice its width, it is a gobelin stitch. Tent stitch can be used to work the main design as well as the background areas of the canvas.
There are three main variations of tent stitch for canvas embroidery: basketweave stitch, continental tent stitch and half cross stitch (also known as half tent stitch). These three appear to be the same on the front, but they are worked in slightly different ways.
The tent stitch, when applied to canvas, is also known as needlepoint stitch.
Source: LEVEY, Santina M. (1998). An Elizabethan Inheritance: The Hardwick Hall Textiles, London: The National Trust, p. 43.