Probably the only way you could know for sure is to grow them all and compare them. I looked at the photos of some of the offerings and they don't show the parts of the flowers that would help you figure out whether they could be a white form of Triteleia laxa, Triteleia peduncularis that someone decided to name, or Triteleia hyacinthina. Since all of these species show great variation in nature depending on where they are found and many have a broad distribution, it gets even more complicated. Brent and Becky's sell two of them and they don't tell you how tall 'Silver Queen' gets, but say that 'White Sweep' is a form of Triteleia laxa that grows to 24". Another web site says it is about 1 foot tall. So are they both selling the same thing? Is 'White Sweep' really a form of Triteleia laxa? One picture I saw of 'Silver Queen' made it look like T. peduncularis with long pedicels. All of this gets more complicated since sellers often use photos they find on the Internet to illustrate plants they are selling rather than photograph their own plants. I recently was alerted to photos of mine lifted from the wiki for Ebay and other sellers. It actually was a picture of an entirely different species than the one they were selling. If they were actually growing that plant and looked at the picture they were using to illustrate it, they would have known it was wrong. Mary Sue >Are T. 'Silver Queen', T. 'White Queen', and T. 'White Sweep' the >same or are they different. If they are different, then how?