flower image : The Flower Knot
Generalities
This particular knot has many names and seems to be a sequential variation from a number of different families of knots. I've chosen to give it the name of flower knot because I've always thought of its basic shape and ordinal variations as flowers.
General Tips
keep the loops that form the centre of the knot similarly oriented. That is to say, as a general rule keep the part of the loop that leads from the already completed body of the knot aligned to the top of the knot and the part of the loop that is closer to the free working end aligned to the bottom of the knot. You can reverse this orientation if you wish, as long as you are consistent with all the loops.
keep the centre loops as short as will still allow you to work, the petals will take care of themselves. Keeping the centre short and tidy will be closer to the final structure of the knot and easier to control than if the centre loops are allowed to get long.
you'll find that if you pull hard enough, that you can take up slack from one petal to another. This is not recommended because the larger the knot, the more this type of activity will deform the central structure of the knot. Also, you may find that you are tightening the knot too much, so that when it is time to adjust and fine tune the final structure of the knot (or take it apart because you made a mistake in design) that it is exceedingly difficult to do so.

http://images.google.com/imgres?imgurl=http://www.chineseknotting.org/flower/flower6-big.jpg&imgrefurl=http://www.chineseknotting.org/flower/&h=367&w=323&sz=40&tbnid=p64pIuJ4ZgsJ_M:&tbnh=118&tbnw=103&hl=en&start=13&prev=/images%3Fq%3Dflower%2Bimages%26svnum%3D10%26hl%3Den%26lr%3D%26rls%3DWZPA,WZPA:2006-14,WZPA:en%26sa%3DN