I have been looking everywhere and i can't seem to find the ID for a mushroom stem.
I ONLY have access to world edit no other commands like /setblock
I can't use this type of command as for I'm on an minecraft server.
/setblock ~ ~ ~ minecraft: red_mushroom_block 15
----Need World edit ID
When you want to use a data value in WorldEdit, you add: x after the block name/ID, where x is the value.
So whatever you use to place the red mushroom block, add:10 for a stem with the porous 'inside' texture on the top and bottom, or:15 for one with the external stem texture on all six sides.
However not all versions of WorldEdit support that function. So it depends which version the server is using.