It's one of them. I haven't investigated C. kewensis to find out why TPL says it's illegitimate... or if the info there agrees with other name repositories. I only "got involved" because I checked to see if beddomei is a synonym of kewensis (the opposite is said to be true on TPL,) and if not, to try to find pics to see if it's something that should be on my wish list, even more specifically than being under the umbrella of "if it's a Commelinaceae I haven't bagged yet, I need it."