This is a very useful technique for making shapes with all those leftover bits of twigs and thin foliage stems.
This technique is included in a video tutorial along with palm frond weaving, banana leaf folding, reed weaving (corn dolly style), foliage domes, autumn/fall leaf containers and spider webbing.
Here is the section on using how to make shapes with foliage offcuts
Circle example in design Star (another design)