Coffee
Coffee is a plant that originated in east Africa but was spread across the world due to its energizing seeds.
#Human usage
People of the Fifth World, like people today, dry and roast the coffee plant seeds (colloquially called "beans") and use them with boiling water to make stimulating beverages. Often, people sweeten their coffee with honey or sugar cane juice, or will add coconut milk, cocoa, or vanilla to it.
#Specialization
A community specializing in relationship with coffee will invariably have no trouble getting to sleep. They may place more emphasis than many communities on productivity and vigor. They may live in a place where, before collapse, coffee had great popularity and importance, such as the Pacific Northwest.
They will likely practice horticulture, and therefore live in settled villages. Often these communities practice slash-and-burn agriculture, growing different guilds of plants at different stages and moving around the jungle in a regular cycle. They will likely plant coffee in a relatively late stage of this cycle, so it may enjoy the partial shade of a coconut or banana tree.