The elements in the Assomption sash pattern are the central arrow flanked by lightnings.
The lightnings are lozenge shapes connected to the next lozenge by a thin line.

The ladies of Assomption, Quebec, wove sashes for the Fur Trade companies in the early 1800s. They standardized the pattern and color sequence: a red arrow ( the heart of the sash) in the middle, flanked by lightning patterns of white, dark blue, pale blue, red, yellow, and green. These are the required colors and run down the center of the sash. Wide sashes have more lightnings. These wider sashes sometimes repeat the required colors, sometimes varying the colors.

This is a variation of the arrow-and-lightning pattern.
The color sequence is different from the standard colors in the official Assomption sash.

This sash features two lines of arrows. Note that one set of arrows points up, and the other set points down.

The flame pattern features a central arrow, flanked by lozenge shapes. Note that these lozenges do not connect in the manner that the lightnings connect in the Assomption pattern. This pattern was popular in Quebec in the mid- to late-1800s.

The W pattern is several chevrons, worked side-by-side