Weedy Tulips - T. clusiana
penstemon (Sun, 29 Mar 2015 15:50:10 PDT)

Bob, I'm not sure what you meant by those = signs, but The Kew List makes Tulipa stellata a synonym of T. clusiana.

Equals. Is the same as. It was, of course, backwards. T. stellata is considered a synonym of T. clusiana.
Bob