I bought a burr. Nelly Isler 'Swiss Miss' about four months ago and it has been a very sweet plant. It had one spike with six or seven buds and the picture the vendor showed me looked good , and she told me the blooms would be fragrent. All turned out to be more than true. It has put out spike after gently scented spike. My wife has highjacked it to her office and it continues to bloom, ever since April. I wanted to do some research on it but I can't find out what a burr. is.