Kampyo (Pickled gourd)
http://eat.epicurious.com/dictionary...sf?DEF_ID=2354

kalanamak wrote:

This was a veggie roll, and besides the cuck and avocado and radish
sprouts, each peice had a bit of reddish brown, this, veined, salty and
slightly sweet veggie in it. They didn't know enough English to tell me
what it was...seemed pickled, very lightly, and didn't seem daikonish in
taste. Any ideas?
TIA
blacksalt