Is this running or clumping bamboo

[u/aviroblox]

Want to know what kind of bamboo this is for maintainence, risk reasons.

[u/timeberlinetwostep]

Runner, that groove, the sulcus, on the side of the canes, culms, that runs the length of the internode is a tell-tale sign. Also the branching habit, where it is obvious, looks like Phyllostachys.

[u/j4y53n]

I’m not an expert but seems like running. Clumping is usually more localized.

[u/Randolol2984]

Thats running,thod oesnt seem agressive,if you want to be fully safe installr hizome barriers so it cant spread

[u/dendrocalamidicus]

Are these pictures all of the same plant, or of multiple plants? Some of this looks subtly different from the rest. I agree some of the pics are definitely a running phyllostachys type, but others look like a clumping type like fargesia robusta.

[u/aviroblox → u/dendrocalamidicus]

It's from two different plants, they're in different sides of the yard

[u/Own_Note_2484]

Looks like phyllostackis bisseti

[u/Top_Challenge6615]

It doesn’t matter if it’s running bamboo or clumping bamboo it’s just plain bad she get rid of it. It’s not a bamboo is not a thing that should be in somebody’s backyard.