Jelinda...Carol here...I haven't a clue. I have heard they are different and I have heard they are simply clones. And it is so hard to tell....I have gotten queries about a plants true ID and when they sent a picture, they hadn't the plant they were talking about!!!! There is enough controversy about them...all stemming from an original publication that wasn't deemed legit (H. angustafolia) that I think it is impossible to tell the difference unless you have a powerful magnifying glass and can dissect your flowers and compare them to the original publication data....
