Have seen it in the LFS's around Perth and have some in my tank but only stems with individual leaves at the moment. That looks fantastic. My plants have just started to sprout new shoots at the tips of the leaves. If they turn out like that I will be very happy.
If you get stuck give the Perth Aquarium and Display Centre in Cannigton WA a call and see if they have any can can let you know where they are getting it from. They are the only WA aqua plant wholesaler in Perth that I know of. If you know of any others will anyone drop me a note.