I think that's how it's spelled. When I was in memphis, I saw this bamboo, that was 4 inches around, well, ok, maybe 3, but it was huge, l5 feet tall and he said it grew 3 feet a day, it was absolutely beautiful. He sells hostas, and other shade plants, his was growing in full shade, and I bought a 2 gallon pot , and he said in 3 years mine would be as big as his. It will be like christmas time when I see that day.
But I haven't been able to find any info on it, he called it pleoblastus bamboo.
It's spelled Pleioblastus, here are the ones that are in Plant Files, there are a number of different species but hopefully if you look at the pictures you'll see one that looks like yours.
I don't know much about this one, but it is a running bamboo so if you're planning on putting it in the garden make sure you use a root barrier.
WE planted it where we don't care if it takes over. He also told me it seems to like to grow in one direction, I had 2 different people tell me that that grow this bamboo, that it will grow in one direction, can't remember which direction, I guess if I see it's growing the wrong way I can dig it up and turn it around ha ha.
You are probably thinking of a different genus, as Pleioblastus species are almost all dinky 1'-3' tall bamboos... sounds like you are talking about Phyllostachys? Now THAT's a fast bamboo (or at least some are), and can grow up to 80' tall. All the Pleioblastus species I have grown are beautiful, often variegated and quite small (have to look down to see them, not up).
Well, he did call it pleoblastus and seemed sure of himself, I did a search once and a large bamboo came up that was a pleoblastus.
All I know is this stuff is abou t 4 inches around and it's at least l5 feet tall. and so beautiful. I can't wait for mine to be like this, and hope it doesn't take over LOL It could be the bamboo you mentioned, I guess I don't have to know, I know it was high dollar stuff. like 25.00 for a gallon pot.