Misc: name the plant that translates from the latin as 'fair lady'?

Questions

In Movie Trivia: Julie Andrews and Robert Preston sing this duet as a gay couple?

In Movie Trivia: She sang the beautifully haunting love theme from _Bram Stoker's Dracula_?

In Movie Trivia: This movie musical features Ann Margaret rolling in baked beans?

In Movies: "Time Warp" was revealed in this 1975 not so horrifying picture with Tim Curry?

In Movies: Berlin's breath-taking hit from the movie _Top Gun_?