Savage Frond

Savage Frond are the leaves of treants and Bloodpetals throughout Kalimdor.

Source
Savage Frond drops off treants in Maraudon, Felwood, Feralas and Dire Maul and Bloodpetals in Un'Goro Crater.

As a quest objective

 * Savage Flora Turn in 30 fronds to Rayne at Light's Hope Chapel for 1 Insignia of the Crusade or Insignia of the Dawn
 * Savage Fronds Repeatable version of the quest Savage Flora