Once you are exalted with The Tillers you may purchase an item called Mourning Glory.
You buy it from the Tillers Quartermaster, Gina Mudclaw, for around 100 gold.
If you have this item in your bags when you die a large yellow/orange looking flower and smaller flowers sprout from your corpse. The flowers last around a minute.
So it’s just another cute little vanity item. MOP is so full of vanity items I have had to start selling stuff. I just can’t keep everything. We really need more storage!