Mountain Silversage

Mountain Silversage is an Herb that can be gathered with Herbalism (280).

Source
Mountain Silversage can be found on mountainsides in various high level zones of Azeroth, and in Hellfire Peninsula. Often, reaching the herb node requires a bit of climbing.
 * Blasted Lands
 * Un'Goro Crater
 * Winterspring
 * Hellfire Peninsula (Rare)

Alchemy

 * Elixir of the Mongoose
 * Flask of Chromatic Resistance
 * Flask of Supreme Power
 * Greater Arcane Elixir
 * Living Action Potion
 * Major Healing Potion
 * Elixir of Major Strength
 * Onslaught Elixir

Inscription

 * Silvery Pigment
 * Sapphire Pigment