Hi Nhu, It is sometimes difficult to tell Triteleia bridegsii and T. laxa apart. From Gene's photo you can't really tell whether the stamens are attached at one or two levels. In my experience T. bridegsii sometimes photos pinkish-purple like his picture. Had you considered that it might be that species which does grow into Oregon? Mary Sue >The second plant in that photo is Triteleia laxa.