Happy New Year Bamboo-ers!
I have finally replanted some divisions I got from a neighbour into the "forever homes" (Yes, those are bathtubs, but covered in landscape cloth so they're "classy"

). They had awesome rhizome growth and were a huge struggle to get them out of their pots!
I never really identified them - mostly because they're very pretty and will be a great addition.
Photos really tell the whole story, straight vertical canes with a couple of minor kinks in them. Pure yellow except for one thin green stripe on one cane. The new shoot leaves (aren't they adorably tiny!) have thin yellow stripes down the length of the leaf.
The owner of the grove didn't have many really thick canes - there are less than 1", but about 15" tall. Small leaves.
Vancouver Island, Zone 9.