Spikes in the Nodes

[MaRS3891]

Few days ago i noticed some spikes raising in the nodes. Its my first grow and never read about it.

Its 3º week on vegetative growth, organic media and no problems or diseases.Is it a preflower?
Dont look like showing its gender. I would appreciate to know whether i have to make some move or just keep watching.

 

[Major PITA]

No - not yet.
Those are stipules. They appear on both males and females.

 

[MaRS3891]

Yeah, knowing the name gets more easy to understand.
Found this pics searching through the threads.
I was worried about males.

Major!!!