Never doubted bamboo not being a grass. But I didn’t know about the silica thing - that’s really cool!! Thank you for telling this!

If I remember correctly, wood consists mainly of cellulose, lignin, and hemi-cellulose. I don’t know about bamboo, but I guess it’s some kind of woody material.

“Trees” have secondary growth while “palms” have primary growth. At least that is what I have been told in dendrology lectures.

https://en.wikipedia.org/wiki/Secondary_growth

Tom cruise spec.