Reed-stem Epidendrum growth habit/cycle

[LobsterOfJustice]

Can someone explain the reed stem Epidendrum growth habit? I got my first one recently and I'm trying to figure out what's going on.

I've got a small (I assume oldest) pseudobulb/cane with no leaves. Ive got a slightly larger (I assume second-oldest) cane with one pathetic little leaf. This one looks like it was cut off at some point in the past. Then I've got two main stems. One with no leaves (small pathetic yellow one, basically no leaves), and a bloom spike at the top. This one has a new offshoot at the base. Another full of leaves, with what appears to be a keiki developing at the top - an offshoot about 1" below where this was cut at some point (previous years bloom?) that is growing its own roots.

Just trying to figure out what is old growth and what is new growth. Where should I expect leaves and where should I expect blooms? I'm just confused because one cane has buds and no leaves, and another has leaves, and appears to have previously bloomed. Does it bloom on new growth and produce leaves on old growth? That seems weird. Or are there two distinct types of canes?