Plant fossil?

[eppingera]

Can anyone identify these? We have multiple rocks with these stem-like features.

Thanks!

 

[Age_old]

Almost looks like a mineral. Not sure. Where did you find it?

 

[Chisos]

Worm burrows?

 

[eppingera]

Almost looks like a mineral. Not sure. Where did you find it?

Found them in one particular creek in central Missouri. We find them about every time we go...

 

[old digger]

Looks like a jumble of plant material that fossilized. Nice find!

 

[Age_old]

I'm pretty sure it's a mineral; it might be a good idea to post it in the rock forums to be sure.