So, my cousin says her variety is bissetti. I hit this link:

Bamboo Web

And there is a Phyllostachys bissetii and a Phyllostachys
bissetii 'Dwarf' - first grows to 12 feet tall, the second just under 6 feet. Hers is no more than about 7 feet tall, but she says much of that is due to being exposed to a West wind - I'll have to ask her if she has the dwarf type or not.

Of what I've planted so far, - two clumps of root system as big as I could fit into a tall 5-gallon-diameter bucket - only one bit appears to be flourishing. I think the aggressive hacking it took to dig up a piece of root system damaged and perhaps killed a lot. So I have two 18-gallon Rubbermaid containers buried and about filled with bamboo, and most of it is yellowing out in the leaves and trunk. I guess I'll have to go get some more.

Dave