Now I'm puzzled as to why you asked for an id (using a photo dated 2015) if you already knew its name and had posted about it before? Your plant hasn't got typical Ixora foliage which is why I didn't recognise it. I'm thinking it could be Ixora 'Siam Ribbon' which has curled and distorted foliage. Reading up on its requirements I doubt it will flower in a terrarium as it likes full sun. Siam Ribbon

My best guess would have to be a Bird of Paradise. Most likely a white Bird of Paradise. I had a white one before, and it resembled your plant.

Mmmm, reminds me of the many labiates which infest my woodland - galeopsis, stachys various mints and the like. I generally ignore them but my herbalist D-i-L always swoops on them...

I bought this many years ago & it’s gotten really leggy I’d like to replant it but need to know what it is. Is it a croton of some sort? It’s been indoors in a west window & gets fertilized & misted regularly. I moved it outdoors today to replant it Any help will be appreciated.