Maybess Riverbreeze

Maybess Riverbreeze is a tauren quest giver located just west of Emerald Sanctuary (on the other side of the road) in Felwood. She was aligned with the Emerald Circle. She started the Cleansing Felwood (Horde) quest chain for Horde players; Alliance looking for this quest were instead directed to Arathandris Silversky to the south. She has been missing since the Cataclysm, her status and whereabouts unknown.

Quests

 * Cleansing Felwood (Horde)
 * Salve via Disenchanting
 * Salve via Gathering
 * Salve via Hunting
 * Salve via Mining
 * Salve via Skinning

Quotes
"Taurahe?"
 * To Alliance players:

These once beautiful woods suffer under a terrible curse. Corrupting forces twist the life here into shadows of their former selves. If you are not an agent of this corruption, then perhaps you can aid me in reclaiming Felwood!
 * To Horde players:

There are plants in Felwood that may be saved from corruption when Cenarion plant salve is applied tot hem. I know how to make the salve from several different kinds of items; based on your skill set, you may find that you have multiple options to assist me.
 * After the initial quest

You will also need a Cenarion beacon for your work here; it is a device that allows you to see the taint and corruption of nature that the naked eye will miss.

Taurahe
The general guess was that this NPC was asking Alliance players if they spoke Taur-ahe, based on the converse question asked by of Horde players: "Darnassae?"