I don't think you are the final decision on that, and my point is there is no way to prove that a flower similar to a tulip doesn't exist in the Star Wars universe. If you have some proof, then I will humbly admit I am wrong. But a simple "no" isn't an effective counter argument.
How cold do you have to be to reject a stylized version of a symbol of Parkinson's Disease?
True, but one could also say there is no way to prove that a flower similar to a tulip exists in Star Wars. That, however, is speculation and that is not the focus of this group. The tulip may or may not exist in the SW galaxy, but until we have proof it does we must work under the assumption that it doesn't. The candlewick exists, so you can use it.
And, coming from someone whose kit is a tribute to a deceased relative, no one ever said you couldn't add a symbol of Parkinson's in your kit, only that it cannot be obvious. Lots of people add some sort of symbolic meaning to many parts of their kits, which is permitted, but it has to be in line with the CRLs and the tulip most likely is not.
Note: One of my early concepts for my kit was a poppy, but like I said it would have been too obvious and wouldn't have worked with the rest of the kit, so I switched it to a millaflower due to its similar appearance to the red poppy before scratching the concept entirely.