I assumed Cinda had both of the plants she mentioned and knew it would be one of those. I didn't check the correctness of the name though as it appeared on sites which were educational, but it was going through my mind how much like Silene it was! On ITIS Lychnis alba is a synonym of Silene latifolia.
http://www.itis.gov/servlet/Si...
There's subspecies of Silene latifolia, Silene latifolia subsp. alba is an accepted name also.
http://www.theplantlist.org/tp...
On the Plant List "Lychnis alba Mill.is a synonym of Silene latifolia subsp. alba" so Silene latifolia subsp. alba would appear to be the correct name. Good job you checked it out Myriam.
http://www.theplantlist.org/tp...
