From uoguide.com
Solen Matriarch Quest 
A seed will loosen her tongue
The
Solen Matriarch Quest requires you to kill 7 enemy
Solen Infiltrators and refresh the water supply for the Solen Matriarch. For this quest, if a red Solen Matriarch gives the quest, you must kill black solen. If a black Solen Matriarch gives the quest, you must kill red solen. Red solen inhabit
Trammel, while black solen reside in
Felucca. The starting point for the quest is the center of the
Solen Hive.