Need Help with Costus I.D.

Does anyone recognize this costus? It's rather large growing and I haven't seen it around. Thanks!!!!
Ann

Here's a shot of a stem.

Nope, but its way darn cool!

Found it!! http://www.botany.hawaii.edu/herbarium/digitallib/collections/hlaplants/pdfs/Cot_Costus_leucanthus_w.pdf