The plant usually grows in arid environments, at a temperature range of 5–35 °C (41–95 °F).
It has evergreen leaves, which are 5–10 cm (2–4 in) long and 1–4 cm (0.39–1.6 in) broad.
Khat has been grown for use as a stimulant for centuries in the Horn of Africa and the Arabian Peninsula.
There, chewing khat predates the use of coffee and is used in a similar social context.
It is a controlled substance in some countries, such as Canada, Germany, the United Kingdom, and the United States, while its production, sale, and consumption are legal in other nations, including Djibouti, Kenya, Uganda, Ethiopia, Somalia and Yemen.