Fennel Tea is made from the Mediterranean plant foeniculum vulgare (or anethum foeniculum), a member of the carrot family.
Although originating from this region, you can now find it growing all around the world.
This hardy and perennial herb is green and crunchy like celery, with feathery leaves and small yellow flowers. Its bulb is white or pale green with closely superimposed stalks.
The fennel plant grows well on its own in sunny, hot and sandy areas and can reach 2 meters (6.6 feet approx.) in height. Its fruits are the dried seeds reaching 4 to 10mm long (0.15 to 0.4 inches).