Lotus

Growing on, and forming almost the entire diet of the inhabitants of an un-named island in the Mediterranean off the coast of North Africa, the Lotus plant is infamous for its powerful stupefying effects. The people who live on this island have no recognizable culture other than consumption of the Lotus plant, extreme lassitude and a certain lazy friendliness to outsiders. The only known name for them is that given them in contempt by Ulysses, Lotus-Eaters.

Basically, the Lotus-Eaters live an idyllic life of being perpetually stoned. No wonder they so offended a man of action like Ulysses.