I've had some questions about blooming so I'll attempt to explain it. Keep in mind, I can just barely explain where peanut butter comes from ,so you'll hafta accept this for what it is.
When the plant is close to blooming , the meristem moves up the p-stem and it is the 'last leaf', the driving force, the last bit of life that travels through and out of the p-stem in the form of bracts, blooms and fruits. It can be seen as a solid circle in the center of the other leaf sheaths and looks like its made of corm .
In a plant that's still pushing leaves, you can see the up-and-coming leaf rolled in one side of the previous leaf sheath or stem. And , you could see the leaf structure....rolled leaf, stem material, chanels....
I hope this made some sense. If so, seek psychiatric consultation. If not,don't worry, hopefully another member will step in and give a better description.