I just checked out the versicolor, having a hard time finding a picture of the leaves with the dark markings.
I did read one description that said ''light green leaves occasionally marked with brown''
Don't know if it means some plants have brown color or there is some color on the leaves?
I love the G. versicolor on the wild flowers of Ireland link! I haven't seen anything like that. Love the purple veining on the flowers!! Any idea where or if that one is available in the US?