The sage is often foraged wild from the desert hills around camp rather than bought, so the tea's exact flavor shifts depending on which stretch of desert it was picked from.
Black tea is steeped with a handful of fresh or dried wild sage (mramiyeh, from the Arabic word for sage, maramiya) and plenty of sugar, then poured from a height to build a light foam on top. It's the default hospitality drink at Bedouin camps across Wadi Rum, poured for guests before and after meals.