Ixali Oaknot

Ixali Oaknot is a currency.

Source
Ixali Oaknots can be obtained as a reward the following quests:
 * Hard Knock Life
 * A High Wind in Ishgard
 * Bring Your Own Ectoplasm
 * Crazy Like the Pox
 * In Case of Emergency
 * Leave Nothing to Waste
 * Manual Labor
 * Mining for Compliments
 * Never Be Royal
 * Never Steer You Wrong
 * Standing at the Helm
 * Tanks for Nothing
 * We Fly High (Squawkin')
 * West for Fishing
 * Your Gil's No Good Here

Uses
Ixali Oaknots are used to purchase items from the following vendors:
 * Ixali Vendor