This Marcgravia is similar in appearance to the one from St. Lucia, both having elongated leaves with rather pointy leaf tips.  This one seems to stay smaller although it’s hard to say how large it would get if given enough room.  It is a very compact grower and when growing up a background, the leaves do stay small in my experience.  New growth is a nice bright yellow.  This species is easy to keep and on the quicker side.

Available plants are well rooted in 2″ pots.  They will be shipped potted.  The last photo is representative of the size plant you will receive.