Basic Arrow Shafts (Organic Recipe) where to find?

[RancidAngel]

Need some help here, Anyone know where this recipe can found?

Basic Arrow Shafts (Organic Recipe) uses spider legs for shafts?

Thanks

[ShieldBreaker]

I believe

It will be automatically learned when you reach level 11 in Fletching. Level up Fletching is how you get it, some level after 10.