More like straw, which is the dried stems of grain plants.
This word makes people think of dry, light, and maybe a little scratchy things.
Examples:
The strawier hat was lighter than the other one.
The strawier grass was easier to walk on.
The strawier the nest, the better for the birds.
The strawier the bed, the worse for my back!
The strawier the better for scarecrows.
The strawier the better for the scarecrow's clothes.